The rate at which an object transfers energy by heating is determined by the following factors: the object's surface area, volume, and material, as well as the nature of the surface with which the object is in contact.
What does the rate of thermal energy transfer depend on?The heat transfer rate is determined by the material through which heat is transferred. The effect of a material on heat transfer rates is frequently expressed numerically as thermal conductivity. Thermal conductivity values are numerical values determined through experimentation.
Thermal energy is the internal energy of a system as a result of its temperature. When a substance is heated, the temperature rises because the molecules that make up the substance move faster and gain thermal energy via heat transfer.
Thus, The greater the temperature difference between a body and its surroundings, the quicker heat is transferred.
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magnesium reacts with titanium (iv) chloride to produce magnesium chloride and titanium, write the reaction
Answer:TiCl4(l)+2Mg(s)→Ti(s)+2MgCl2(s)
Explanation: I looked it up and it said that this is the equation for your question.
Calculate Kc for each reaction. b. CH4(g) + H2O(g) ⇌ CO(g) + 3 H2(g) Kp = 7.7x10^24 (at 298 K)
The value of Kc for each reaction. b. CH4(g) + H2O(g) ⇌ CO(g) + 3 H2(g) is Kp =[tex]7.7x10^24 mol^-1[/tex]
To calculate Kc for a reaction, we need to use the relationship between Kp and Kc, which is: Kc =[tex]Kp (RT)^(Δn)[/tex]
where R is the ideal gas constant, T is the temperature in Kelvin, and Δn is the change in the number of moles of gas in the reaction.
For the reaction: CH4(g) + H2O(g) ⇌ CO(g) + 3 H2(g)
Δn = (3 - 2) - (1 - 1) = 1
So, Kc =[tex]Kp (RT)^(Δn)[/tex]
At 298 K, R = 8.314 J/[tex]mol*K[/tex], so
Kc =[tex]7.7x10^24 (8.314 J/mol*K)(298 K)^1[/tex]
Kc = [tex]7.7x10^24 J/mol[/tex]
Since Kc is in Joules, we can convert it to an appropriate unit of concentration.
Kc=[tex]7.7x10^24 mol^-1[/tex]
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Kc ≈ 1.8 x 10⁻⁷ (at 298 K). It indicates a strong preference for the forward reaction, forming products, under the given conditions.
To calculate Kc for the given reaction, we need to use the relationship between Kc and Kp and the ideal gas law.
The relationship between Kc and Kp for a balanced chemical equation is:
[tex]Kp = Kc * (RT)^Δn[/tex]
Where:
Kp is the equilibrium constant in terms of partial pressures.
Kc is the equilibrium constant in terms of molar concentrations.
R is the ideal gas constant (8.314 J/(mol·K)).
T is the temperature in Kelvin.
Δn is the difference in the number of moles of gaseous products and gaseous reactants.
In the given reaction, Δn = (1 + 3) - (1 + 1) = 2.
Now, we can rearrange the equation to solve for Kc:
[tex]Kc = Kp / (RT)^Δn[/tex]
Given Kp = 7.7 x 10²⁴ and T = 298 K, and substituting the values, we get:
Kc ≈ (7.7 x 10²⁴) / [(8.314 J/(mol·K) * 298 K)²]
Kc ≈ 1.8 x 10⁻⁷
Thus, Kc for the reaction is approximately 1.8 x 10⁻⁷ at 298 K.
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Why do you think acetic acid and isopropyl alcohol have different properties?
Acetic acid and isopropyl alcohol have different properties because they have different chemical structures.
Acetic acid, also known as ethanoic acid, is a carboxylic acid with the chemical formula CH3COOH. It contains a carboxyl group (-COOH) which gives it acidic properties, and it also has a methyl group (-CH3) attached to the carbon atom next to the carboxyl group.
Isopropyl alcohol, also known as isopropanol, has the chemical formula C3H8O. It is a simple alcohol, which means that it contains a hydroxyl group (-OH) attached to a carbon atom. This hydroxyl group gives it some of the characteristics of a polar solvent, but it does not have any acidic properties.
Due to these different structures, acetic acid is a stronger acid than isopropyl alcohol, and isopropyl alcohol is a better solvent for non-polar compounds. Additionally, Acetic acid is more viscous and has a higher boiling point than Isopropyl alcohol.
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Calculate the number of C atoms in 0.522 mol of C.
Express the number of atoms of carbon numerically.
Nc = ________ atoms of C
The number of C atoms in 0.522 mol of C is:
Nc = 0.522 mol * Avogadro's number
Nc = 0.522 mol * 6.022 x 10^23 atoms/mol
Nc = 3.145 x 10^23 atoms
So there are 3.145 x 10^23 atoms of C in 0.522 mol of C.
Glycine is an amino acid found in protein. An analysis of glycine gave the following data: 32.0% carbon, 6.7 % hydrogen, 18.7% nitrogen, and 42.6% oxygen. Calculate the empirical formula for the amino acid. (Assume 100g sample)
Guided Notes from Reading
Explore (pg 1)
What does the plasma membrane do?_________________________provides protection for a cell__________________________________________
Explore (pg. 4)
The plasma membrane is made up of molecules in two layers which we call the ________________.
The layers are made of molecules called __________________.
They have a _________ and ____________.
Which part of the molecule faces out towards the cytoplasm?________________________________
Explore (pg. 5)
How do molecules get inside and outside the cell?______________________ or ______________________
To bring something inside the cell, it is called________________________
To bring something outside the cell, it is called
________________________________________
The plasma membrane provides protection for cell contents.
Explore (pg. 4)
The plasma membrane is made up of molecules in two layers which we call the phospholipids bilayer.
The layers are made of molecules called phospholipids.
They have a hydrophilic head and a hydrophobic tail.
The hydrophilic head faces out towards the cytoplasm
Molecules get inside and outside the cell by endocytosis or exocytosis.
To bring something inside the cell is called endocytosis.
To bring something outside the cell is called
exocytosis.
What is the plasma membrane?The cell membrane or plasma membrane is the outermost covering of cells that separates and protects the interior of all cells from the outside environment.
The plasma membrane allows molecules to enter or leave the cell by endocytosis or exocytosis.
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How many significant figures should be in the answer to each of the following?
(6.4) (3.1416) =
Number of significant figure in (6.4) (3.1416) is Two
What is significant figure ?Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.
All non-zero numbers ARE significant.
Zeros between two non-zero digits ARE significant.
Leading zeros are NOT significant.
Trailing zeros to the right of the decimal ARE significant.
Trailing zeros in a whole number with the decimal shown ARE significant.
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Number of significant figure in (6.4) (3.1416) is Two
What is significant figure?Significant figures are the number of digits that contribute to the accuracy of a value, frequently a measurement. The first non-zero digit is where we start counting significant figures.
Every number that is not zero IS significant.
Two non-zero digits separated by a zero are important.
Leading zeros have no real meaning.
Right after the decimal, trailing zeros ARE important.
The last two digits of a whole number with a decimal representation are important.
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What is impossible for a machine to do?
do a greater amount of work than the amount of work done on the machine
apply a force in a direction that is different than the direction of the force applied to the machine
move an object a greater distance than the distance that part of the machine was moved
apply a force that is less than the force that is applied to the machine
Doing a greater amount of work than the of work done on the machine is impossible for a machine to do. The energy given the system might loss some fraction and cannot be converted completely to output work.
What is work done ?Work done is a physical quantity that describes the result of a force or how effectively the force made a displacement. The force applied on a body if results in a displacement of the body, the force is said to be done work on the body.
Work done is a vector quantity, having both magnitude and direction. According to thermodynamic concept, then it is impossible to convert all the input energy into work done.
It is impossible to achieve a 100% of efficiency or more by a machine. Hence, doing greater amount of work than the input is impossible for a machine.
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Answer:
A or do a greater amount of work than the amount of work done on the machine
Explanation:
Bc i did the test in edge
What weight of ice is melted at 0°C by the heat liberated by condensing 180 g of super heated steam at 150°C (b.p of water=100°C, heat of vaporization =540 cal g¹, heat of fusion of ice =80 cal g¹, specific heat od steam=1.6 cal g¹ degree ¹.
Answer: 1395 grams of ice can be melted
Explanation:
To find the weight of ice that is melted by the heat liberated by condensing 180 g of superheated steam at 150°C, we need to use the following information:
The boiling point of water is 100°C
The heat of vaporization of water is 540 cal/g
The heat of fusion of ice is 80 cal/g
The specific heat of steam is 1.6 cal/g°C
First, we need to calculate the total heat energy released by the condensation of the steam. This can be found by using the heat of vaporization and the amount of steam being condensed:
180 g x 540 cal/g = 97200 cal
Next, we need to calculate the heat energy absorbed by the steam as it cools down from 150°C to 100°C. This can be found using the specific heat of steam and the change in temperature:
180 g x 1.6 cal/g°C x (100 - 150) = -14400 cal
Now, we can subtract the heat absorbed by the steam from the total heat released by the condensation to find the heat energy available to melt the ice:
97200 cal - (-14400 cal) = 111600 cal
Finally, we can divide this heat energy by the heat of fusion of ice to find the weight of ice that can be melted:
111600 cal / 80 cal/g = 1395 g
Therefore, 1395 grams of ice can be melted
What happens during osmosis. And why is it important for the production of hydrogen?
Osmosis is a process of diffusion where a solvent, such as water, moves from an area of higher concentration to an area of lower concentration through a semi-permeable membrane.
What do you mean by diffusion?
Diffusion is the process by which particles of matter or energy disperse from areas of higher concentration to areas of lower concentration. This process can occur in liquids, gases, and solids. Diffusion occurs naturally as a result of random thermal motion of the particles.
Osmosis helps to equalize the concentration of the solvent on both sides of the membrane. It is important for the production of hydrogen because it can be used to separate hydrogen molecules from other components in a solution. By creating a difference in concentration of the solution, the hydrogen molecules will be forced to the side of the membrane with the higher concentration, allowing them to be collected.
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АНОЗ what is the oxidation number for this compond
Answer:
AHO3 is a reported alias name for the human gene HDAC4, or 'histone deacetylase 4'. The 1084-amino acid protein is a member of the Histone deacetylase family, HD type 2 subfamily. The cellular localization is predicted to be cytoplasmic and nuclear.
Alumina, also called aluminum oxide, synthetically produced aluminum oxide, Al2O3
how to calculate theoretical yield
Answer:
I'm not really sure how but here's the formula?
To calculate theoretical yield first check chemical equations are balanced. Calculate the mole ratios of the reactants and products, Find the theoretical yield of the reaction.
Percent Yield = Mass of Actual Yield / Mass of Theoretical Yield x 100 percent.
What is theoretical yield ?The theoretical yield is the quantity of product that stoichiometry predicts will be produced, whereas the actual yield is the amount that is actually produced.
The yield of a reaction is used to represent how much of a product is produced from that reaction.
Thus, Divide the ratio by the limiting reactant's molecular weight. The answer is the theoretical yield of the desired product in moles.
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Does anyone know how to solve these two questions?
Carbon is burned here to produce carbon dioxide. It is worth noting that 1 mole of carbon must react with 1 mole of oxygen gas to make 1 mole of carbon dioxide.
How many moles of CO2 are produced?CO2 has a molar mass of 1*12+2*16=44 g/mol. The amount of moles is therefore 88/44=2 moles of CO2. As a result, the number of CO2 molecules is 2*6.022*1023 (Avogadro’s number) = 1.2044*1024 molecules.
Water (H2O) is composed of two hydrogen atoms and one oxygen atom. A mole of water consists of two moles of hydrogen atoms and one mole of oxygen atoms.
The formula for the number of moles is written as.
Given.
The formula for the number of moles is.
The number of moles equals the mass of the material divided by the mass of one mole.
95 / 86.94 Equals the number of moles.
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how do we know that we need osmosis  to make water splitting work efficiently?
Answer: hey sorry im late but i think this will help with ur answer
Osmosis is the diffusion of water molecules through a selectively permeable membrane, from an area of higher concentration to an area of lower concentration. In the context of water splitting, osmosis is needed to make the process more efficient because it helps to separate the hydrogen and oxygen ions that are produced during the process.
When the water is split into hydrogen and oxygen, the hydrogen ions and oxygen ions will tend to want to recombine because they have an electrostatic attraction towards each other. If they recombine, it would be difficult to separate them again. But by using osmosis, we can separate the hydrogen ions and oxygen ions by creating a selectively permeable membrane which only allows water molecules to pass through but not the hydrogen and oxygen ions. This way, we can keep the hydrogen and oxygen ions separate, and prevent them from recombining.
Additionally, water splitting process requires a high energy input to separate hydrogen and oxygen from water. Osmosis can be used to decrease the energy input required for water splitting by creating a concentration gradient. This is because the concentration gradient can be used to drive the water splitting reaction, allowing it to occur at lower energy inputs, making the process more efficient.
In summary, osmosis plays a crucial role in making water splitting work efficiently by providing a way to separate the hydrogen and oxygen ions produced during the process and by decreasing the energy input required for water splitting by creating a concentration gradient.
Explanation:
Because we obtain a significantly lower faradaic efficiency with saltwater, we are aware that it cannot be converted into hydrogen gas as effectively as pure water. Without osmosis, the Cl- in the saltwater produces side reactions that reduce the efficiency of water splitting.
What is Osmosis?
Osmosis is a passive process that doesn't require any energy to complete. In order for the concentrations on either side of the membrane to be equal, molecules must shift from an area of higher concentration to one of lower concentration.
Any solvent, including gases and supercritical liquids, can go through the osmosis process.
Let's take a closer look at the various forms and consequences of osmosis.
Osmosis is the process by which solvents migrate from an area of lower solute concentration to one of higher solute concentration through a semi-permeable membrane. Instead, in diffusion, molecules migrate from an area of higher concentration to one of lower concentration without the need for a semi-permeable membrane.
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Sperm fertilizes an egg forming a ________ which becomes an________ and then a fetus.
Examples of species that needs to be nurtured (cared for) by their parents at birth: ________, ________, ________
Examples of species that does not need to be nurtured (cared for) by their parents at birth: ________, ________, ________
Answer:
zygote
embryo
elephant,calf,penguin
frogs, snake, butterfly
Part D
After about 30 minutes, observe the substances in the test tubes again. Record your observations. Include any evidence
of a chemical reaction.
A Caution! If you plan to leave your substances unattended, be sure they are in a safe location away from young children
and pets.
BIY X¹ X₂ 10pt
Test tube
1
2
3
4
5
6
AVE
Observation
After about 30 minutes, the color in the test tubes remains same as no more reagents are added and no further chemical change is taking place.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
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Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A 100-mL graduated cylinder with an inside diameter of 3.04 cm contains 35.3 g of heptane and 38.1 g of water. What is the combined height of the two liquid layers in the cylinder? The volume of a cylinder is π r2h, where r is the radius and h is the height.
Combined height of the two liquid layers in a cylinder is 11.65 cm.
What are the volumes and heights of liquids?In order to find the combined height of the two liquid layers in the cylinder, we need to find the individual heights of the heptane and water layers by using the density and mass of each liquid to find the volume, and then use the volume and radius of the cylinder to find the height.
To find the volume of the heptane layer:
mass of heptane / density of heptane = 35.3 g / 0.684 g/mL = 51.7 mL
To find the volume of the water layer:
mass of water / density of water = 38.1 g / 1.00 g/mL = 38.1 mL
The radius of the cylinder:
diameter of cylinder / 2 = 3.04 cm / 2 = 1.52 cm
Height of the heptane layer:
volume of heptane / πr^2 = 51.7 mL / (3.14 x (1.52 cm)^2) = 6.66 cm
Height of water layer:
volume of water / πr^2 = 38.1 mL / (3.14 x (1.52 cm)^2) = 4.99 cm
Combined height of the two liquid layers:
height of heptane layer + height of water layer = 6.66 cm + 4.99 cm = 11.65 cm
So the combined height of the two liquid layers in the cylinder is 11.65 cm.
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what is the wavelength of a green light radiation that has a frequency of 6.26 x 10^14 Hz?
The wavelength of the green light radiation that has a frequency of 6.26 x 10¹⁴ Hz is 4.8 x 10⁻⁷.
What is meant by wavelength?A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is often defined in wireless systems in metres (m), centimetres (cm), or millimetres (mm) (mm).The distance over which a periodic wave's form repeats is known as the wavelength in physics.The wavelength, which will also apply to troughs, is the separation between two wave crests. The frequency is measured in cycles per second (Hz), which is the quantity of vibrations that cross a specific area in a second (Hertz). In this article, the relationship between wavelength and frequency is covered.Given data :
As, c = ∧ v
So, ∧ = c / v
∧ = 3.00 x 10⁸ / 6.26 x 10¹⁴
∧ = 4.8 x 10⁻⁷
Thus, the wavelength of the green light radiation that has a frequency of 6.26 x 10¹⁴ Hz is 4.8 x 10⁻⁷.
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Technological design is a main focus in which field?
biology
chemistry
mathematics
engineering
Answer: Engineering
Explanation: Hope this helps
Question 4 (1 point) The volume of 16.0 grams of SO2 gas at STP is closest to
Molar mass: 64.07 g/mol
33.6 L
11.2 L
5.6 L
44.8 L
Answer:
5.6L
Explanation:
64.07g=22.4dm^316.0g. =?
(16.0×22.4)÷64.07
=5.5939
approximately 5.6L
Which DNA strand matches the strand AATGACT?
TTACTGA
GGCAGTC
CCATCAG
AACGATC
AACGATC matches the strand AATGACT because it is the reverse complement of AATGACT.
In DNA, the nucleotides Adenine (A) always pairs with Thymine (T), and Cytosine (C) always pairs with Guanine (G) in the double helix structure.
By taking the reverse of a given DNA sequence and then replacing each base with its complement, you get the reverse complement of the original sequence.
So, in this case, AATGACT is the original sequence, by replacing A with T, T with A, G with C, and C with G we get the reverse complement of the sequence AACGATC.
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Answer: It is AACGATC
Draw the Lewis structure of sulfanilamide. Include all lone pairs
Sulfanilamide (NH2-SO2-NH-C6H4-NH2) can be represented by the following Lewis structure.
What is the Lewis structure?
The Lewis structure for a molecule is a type of structural formula that shows how the atoms are bonded together in a molecule. It uses symbols to represent the elements and to show the number of valence electrons. It also shows the number of covalent bonds between the atoms and any lone pairs of electrons.
N-H | S=O | N-C=C-C=C-C=C-N
H | | H
H | | H
H | | H
The Lewis structure of sulfanilamide (NH2-SO2-NH-C6H4-NH2) consists of two nitrogen atoms, two oxygen atoms, and six hydrogen atoms. The two nitrogen atoms are bonded to each other by a double bond, and each nitrogen is also bonded to two hydrogen atoms. The two oxygen atoms are both single bonded to the two nitrogen atoms, and each oxygen is also bonded to one hydrogen atom. The six hydrogen atoms are all single bonded to the other atoms in the structure.
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Please help with the following problem!
Both Kelvin and Fahrenheit are temperature scales.F = 1.8*(K-273) + 32 is the simplest formula for converting between Kelvin and Fahrenheit.
What is Temperature in Kelvin?In keeping with past centigrade scales, Kelvin prudently suggested that the temperature range between the ice point and the steam point initially be specified as 100 degrees. A temperature scale, which we use to determine temperature, is present on every thermometer
The Standard International (SI) unit of thermodynamic temperature is the kelvin (abbreviation K), often known less frequently as the degree Kelvin (symbol, o K). The formal definition of one kelvin is 1/273.16 (3.6609 x 10 -3) of the thermodynamic temperature of pure water's triple point (H 2 O).
Formula
This simple formula states that to find Kelvin temperature (K).
K = °C + 273The temperature is increased numerically by 273 to translate from the Celsius scale to the Kelvin scale. As a result, the kelvin scale and the Celsius scale have the following relationships.
T(K) = T(oC) + 273What is Temperature in Degrees Fahrenheit?The temperature scale known as the Fahrenheit scale was first proposed by physicist Daniel Gabriel Fahrenheit in 1724. (1686–1736). The unit is the degree Fahrenheit, represented by the symbol °F. There are a number of tales of how he initially created his scale, but the original publication states that the lower defining point, 0 °F, was set as the freezing temperature of a brine solution made from a combination of water, ice, and ammonium chloride (a salt). His best estimate of the average human body temperature, originally set at 90 °F and then 96 °F (about 2.6 °F less than the current figure due to a later revision of the scale), was the other limit established.
Fahrenheit to Celsius conversion
0 degrees Fahrenheit is equal to -17.77778 degrees Celsius:
0 °F = -17.77778 °C
The temperature T in degrees Celsius (°C) is equal to the temperature T in degrees Fahrenheit (°F) minus 32, times 5/9:
T(°C) = (T(°F) - 32) × 5/9
Fahrenheit to Kelvin conversion
The temperature T in Kelvin (K) is equal to the temperature T in degrees Fahrenheit (°F) plus 459.67, times 5/9:
T(K) = (T(°F) + 459.67)× 5/9
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What would question four will be?
Please explain
Energy, according to scientists, is the capacity for work. Because of the development of energy conversion technology, modern civilisation is feasible.
What are the two most commonly used units of energy?Calorie (cal) (cal). In more recent times, the calorie has been defined in terms of the joule; historically, this relationship has been referred to as the mechanical equivalent of heat. Joules is the energy unit used in the SI (J). The formula for joules is 1 kg*m2*s-2. The unit of energy known as a kilojoule (kJ) is 1000 joules.
The term "calorie" (Cal) refers to the amount of energy that is either contained in food or used by the body. A joule is equivalent to (roughly): the quantity of electricity needed to power a 1 W device for one second. the power necessary to move a 1 kg mass 1 m/s2 at a distance of 1 m. Nonrenewable and renewable energy sources can be divided into two categories.
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How many atoms are in 4 K2CO3?
Answer: K=8, C=1, O=12
Explanation:
In order to stay well hydrated, the average person should drink approximately 111 moles of water each day. How many grams of H,O is this?
1,998.165 g of H2O is equal to 111 moles of water.
What do you mean by Moles?
Moles are a unit of measure used in chemistry to express amounts of a substance. A mole is defined as the amount of a substance that contains Avogadro's number of molecules or atoms (6.02 x 1023). The mole is used to quantify the amount of a substance present in a sample. Moles are used to express the number of molecules or atoms in a given mass of a substance, the number of ions in a given volume of solution, and the amount of a substance that is produced in a reaction.
Step 1: Convert moles of water to grams of water
1 mole of water = 18.015 g of water
Step 2: Multiply moles of water by grams of water
111 moles x 18.015 g/mol = 1,998.165 g of water
Step 3: Convert grams of water to grams of H2O
1 g of water = 1g of H2O
Therefore, 111 moles of water is equal to 1,998.165 g of H2O.
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In _________ metamorphosis, the insect that hatches from an egg looks like a miniature version of the _________, but it lacks working wings and reproductive organs.
The insect sheds its _________ and grows a new one as the soft body gets bigger.
The broad category of creatures known as arthropods includes mites and insects.
What is Metamophosis?Insects and other arthropods differ from one another in a number of ways. The body is divided into three sections: the head, the thorax, and the abdomen. The legs and wings are on the thorax, while the eyes, antennae, and mouth parts are on the head.
In contrast, mites lack antennae and often have four pairs of legs in their mature forms. In mites, the head and thorax are smaller and united. The abdomen is not clearly divided and is relatively big and bulbous.
Exoskeleton refers to the skeleton that is found on the exterior of an insect's body. In addition to acting as a covering, it supports the muscles and internal organs.
Therefore, The broad category of creatures known as arthropods includes mites and insects.
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Which of the following statements about substances X and Y are true? Assume ideal behavior.
A. Y is the solvent in this solution.
B. The presence of Y in the solution lowers the vapor pressure of X.
C. If Y were not present, there would be more X particles in the gas above the liquid solution.
D. Pure Y has a higher vapor pressure than pure X.
The statements about substances X and Y are true are Y is the solvent in this solution, The presence of Y in the solution lowers the vapor pressure of X and Pure Y has a higher vapor pressure than pure X. Therefore, option A, B and D are correct.
What are the condition for ideal solution?The mixing volume and enthalpy effects of a solution should be zero. The partial molar quantities and of the constituents are constant within the range of concentrations at which a solution is optimal.
Ideal solutions are those that follow Raoult's law throughout the entire concentration range. A solution is referred to as a non-ideal solution if it violates Raoult's law.
Thus, option A, B and D are correct.
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What best explains why low pH indicates more
acidic?
The formula for pH is -log [H+], since it is a
logarithmic function the number indicates how many times
you move the decimal and because it has a negative in it,
smaller numbers actually mean more hydrogen ion in
solution.
The formula for pH is -log [H+], since it is a
logarithmic function the number indicates how many times
you move the decimal and because it has a negative in it,
larger numbers actually mean more hydrogen ion in
solution.
The formula for pH is -log [H+], since it is a
logarithmic function the number indicates how many times
you move the decimal and because it has a negative in it,
but the numbers are not actually measuring hydrogen ion
in solution.
The phrase refers to a solution's basicity or acidity on a range of 0 to 14, with pH 7 representing neutrality. As the concentration of H+ ions in the solution rises, acidity rises and pH decreases, eventually falling below 7. (see Figure 1). The solution is basic when the pH is higher than 7.
Does acidity imply a low pH?Stronger bases are indicated by higher pH values, while stronger acids are indicated by lower pH values (alkalinity). Anything below 7 is basic, whereas anything above 7 is considered acidic.
What happens if the pH is low?Plaster, grout, stone, concrete, and tiling will all etch and deteriorate due to low pH water. Any vinyl surfaces will also start to fracture and rip more easily as they get brittle.
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When 500 ml of water is mixed with 500 ml of isopropyl alcohol in a measuring container, the result measured out to 970 ml of liquid. If every drop was poured in and none of it was spilled, explain why it is measuring out to be 970 ml instead of 1,000 ml? pls help me i have midterms tmr.
It is measuring out to be 970 ml instead of 1,000 ml because while mixing there is probability that missing 30 ml of mixture is evaporated as it has isopropyl alcohol which has high volatility according to forces of attraction.
What are forces of attraction?
Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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