Answer:
1) a) 1.81 × 10²³ molecules (b) 1.93 × 10²³ molecules (c) 0.66× 10²³ molecules
2) a) 0.45× 10²³ions (b) 0.84× 10²³ions (c) 3.6 × 10²³ions
Explanation:
1) Number of molecules:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
a) 16g of H₂CO₃
Number of moles = mass/ molar mass
Number of moles = 16 g/ 62.03 g/mol
Number of moles = 0.3 mol
1 mol = 6.022 × 10²³ molecules
0.3 mol × 6.022 × 10²³ molecules /1 mol
1.81 × 10²³ molecules
b) 20g of HNO₃
Number of moles = mass/ molar mass
Number of moles = 20 g/ 63.01 g/mol
Number of moles = 0.32 mol
1 mol = 6.022 × 10²³ molecules
0.32 mol × 6.022 × 10²³ molecules /1 mol
1.93 × 10²³ molecules
c) 30g of C₆H₁₂O₆
Number of moles = mass/ molar mass
Number of moles = 20 g/ 180.156 g/mol
Number of moles = 0.11 mol
1 mol = 6.022 × 10²³ molecules
0.11 mol × 6.022 × 10²³ molecules /1 mol
0.66× 10²³ molecules
2. Calculate the number of ions in the following compounds:
a) 10g of AlCl₃
Number of moles = mass/ molar mass
Number of moles = 10g/ 133.34 g/mol
Number of moles = 0.075 mol
1 mol = 6.022 × 10²³ ions
0.075 mol × 6.022 × 10²³ ions/1 mol
0.45× 10²³ions
b) 30g of BaCl₂
Number of moles = mass/ molar mass
Number of moles = 30g/ 208.23 g/mol
Number of moles = 0.14 mol
1 mol = 6.022 × 10²³ ions
0.14 mol × 6.022 × 10²³ ions/1 mol
0.84× 10²³ions
c) 58 g of H2SO4
Number of moles = mass/ molar mass
Number of moles = 58g/ 98.079 g/mol
Number of moles = 0.59 mol
1 mol = 6.022 × 10²³ ions
0.59 mol × 6.022 × 10²³ ions/1 mol
3.6 × 10²³ions
Explanation:
please help me with this question
From the calculation, the concentration in parts per billion is 6 ppb.
What is ppb?The term ppb refers to the concentration of a substance in parts per billion. We obtain the ppb using the formula;
Mass of solute/ Mass of solution * 10^9
Now, 1L = 1000cm^3 = 1000 g
The concertation in ppb = 6 * 10^-6 g/1000 g * 10^9
= 6 ppb
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The addition of an inert gas has no effect on the equilibrium position of a gaseous reaction because ______. Multiple choice question. the inert gas has no effect on the equilibrium system at all since it is not involved in the reaction the partial pressures of the reaction components remain the same the reaction quotient compensates for the inert gas the total pressure of the system remain the same
Inert gas does not affect the equilibrium position:
It is because the partial pressures of the reaction components remain the same.
What is Inert Gas?
Under a given set of conditions, an inert gas is a gas that does not undergo chemical reactions.The noble gases (helium, neon, argon, krypton, xenon, and radon) were previously known as "inert gases" due to their perceived lack of involvement in any biochemical processes.Because inert gases are non-reactive, they do not affect equilibrium partial pressures and thus do not affect volume.An inert gas does not react with the reactants or products; it does not change the concentration of the products and reactants. Furthermore, because the volume is constant, the concentrations are unaffected. As a result, this does not affect equilibrium.The equilibrium position won't change if an inert gas is added. A volume change won't change the equilibrium position if the total moles of gas in the products and reactants are the same. When the volume is reduced, the process changes to create fewer moles of gas.
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Please help!
how many moles of oxygen react
with 2.25 mol of nitrogen?
n2(g) +
o2(g)
no(g)
Answer: 2.25
Explanation: 1:1 mole ratio seen in equation.
Explain why increasing extracellular k reduces the net diffusion of k out of the neuron through the k leak channels
This because the concentration gradient does not favor diffusion of potassium ions through the K leak channels.
What is diffusion?Diffusion is the movement of molecules of substances from regions of high concentration to regions of low concentration.
Diffusion of ions through the cell membrane takes places through leak channels due to concentration gradient.
The diffusion of potassium ions in and out of the cell depends on the extracellular concentration of potassium ions.
When extracellular concentration of potassium ions increases, it reduces the net diffusion of K out of the neuron through the k leak channels because the concentration gradient does not favor outward movement of potassium ions.
In conclusion, the diffusion of potassium ions through K leak channels depends on concentration gradient.
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Predict the nature of the indicated
covalent bond.
H
H
polar
H-C
H
-C-H
H
non-poiar
Answer:
Non-polar
Explanation:
Non-polar bonds occur when the electrons in a covalent bond are equally shared between the two atoms.
The indicated bond is most likely non-polar because the two atoms are identical (both carbons). In addition, these two carbons are balanced (their other bonds are identical). This means there is no reason for the electrons in the bond to be pulled in any particular direction.
Which of these is an example of investigating an intensive property?
Oweighing sand in a bag
Omeasuring the length of wire
O determining if a rock is magnetic
Orecording the volume of water in a cylinder
An example of investigating an intensive property is determining if a rock is magnetic. That is option C.
What is intensive property?Intensive property is defined as the property of a substance that doesn't rely on the amount of the substance.
Examples of Intensive property include:
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Gas and dust are the primary components of the interstellar medium. They differ in structural form, elemental composition, and the density with which each is distributed across the interstellar medium. Complete the table by placing the physical descriptions of gas and dust in the appropriate column.
Gas: Structural Forms are Atoms and small molecules whereas Density is quite Low density
Dust: Structural Forms are Clumps of atoms and large molecules wherease Density is Extremely low density
Most of the gas between stars in our galaxy and other galaxies is hydrogen and helium, which is dispersed at different densities between the stars. The gas ratios are comparable to those of the Sun
A buildup of gas and dust falls under the influence of gravity to generate stars. From the moment the first gas cloud begins to compress to the time the star is formed and begins to shine like the Sun, the process of star creation takes roughly one million years.
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A solution contains 7.8% W/V ethanol. Express this in units of g/mL.
A solution that contains 7.8% W/V ethanol is equivalent to 0.078g/mL. Details about weights per volume can be found below.
How to convert W/V% to g/mL?Weights per volume is a unit for measuring density of a substance. It can be converted to g/mL using the following expression:
w/v% = g/100mL
According to this question, a solution contains 7.8% W/V ethanol. The equivalent of this in g/mL is as follows:
7.8% W/V = 7.8g/100mL
= 0.078g/mL
Therefore, a solution that contains 7.8% W/V ethanol is equivalent to 0.078g/mL.
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The body of a speech consists of a. thesis statements and introductions. b. a restatement of the thesis and statement of closure. c. specific purpose statements and internal summaries. d. main points, supporting points, and transitions.
Main points, supporting points, and transitions
The body is everything but the introduction and the conclusion. The body of a speech is made up of main points, supporting points, transitions
What is Body of Speech ?The body of a speech is the center part of the speech that discusses the main ideas and key concepts of the speech.
Main points. are the key ideas you present to enable your speech to accomplish its specific purpose.In a composition or speech, a supporting detail is a fact, description, example, quotation, anecdote, or other item of information used to back up a claim, illustrate a point, explain an idea, or otherwise support a thesis or topic sentencea transition is a sentence where the speaker summarizes what was said in one point and previews what is going to be discussed in the next point.Learn more about Body of Speech here:
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What is the balanced chemical reaction for Mg+H2=MgH, K+O2= KO, K+S= KS, Ba + Br2= BaBr, Ca + N2= CaN
(Giving brainliest for the answer that shows work) Please and thank you!
Answer:
1.) 2 Mg + H₂ ------> 2 MgH
2.) 2 K + O₂ -----> 2 KO
3.) K + S -----> KS
4.) 2 Ba + Br₂ -----> 2 BaBr
5.) 2 Ca + N₂ ------> 2 CaN
Explanation:
An equation is balanced when there is an equal amount of each element on both sides of a reaction. If there is an unequal amount, they can be altered by adding coefficients which modify the amount of an element/molecule. It is important that the coefficients are as small as possible while staying as whole numbers.
1.) ------------------------------------------------------------------------------------------------------
The unbalanced equation:
Mg + H₂ -----> MgH
Reactants: 1 magnesium, 2 hydrogen
Products: 1 magnesium, 1 hydrogen
The balanced equation:
2 Mg + H₂ ------> 2 MgH
Reactants: 2 magnesium, 2 hydrogen
Products: 2 magnesium, 2 hydrogen
2.) ------------------------------------------------------------------------------------------------------
The unbalanced equation:
K + O₂ -----> KO
Reactants: 1 potassium, 2 oxygen
Products: 1 potassium, 1 oxygen
The balanced equation:
2 K + O₂ -----> 2 KO
Reactants: 2 potassium, 2 oxygen
Products: 2 potassium, 2 oxygen
3.) ------------------------------------------------------------------------------------------------------
The unbalanced equation:
K + S -----> KS
Reactants: 1 potassium, 1 sulfur
Products: 1 potassium, 1 sulfur
This equation is already balanced with all the elements/compounds having coefficients of 1.
4.) ------------------------------------------------------------------------------------------------------
The unbalanced equation:
Ba + Br₂ -----> BaBr
Reactants: 1 barium, 2 bromine
Products: 1 barium, 1 bromine
The balanced equation:
2 Ba + Br₂ -----> 2 BaBr
Reactants: 2 barium, 2 bromine
Products: 2 barium, 2 bromine
5.) ------------------------------------------------------------------------------------------------------
The unbalanced equation:
Ca + N₂ ------> CaN
Reactants: 1 calcium, 2 nitrogen
Products: 1 calcium, 1 nitrogen
The balanced equation:
2 Ca + N₂ ------> 2 CaN
Reactants: 2 calcium, 2 nitrogen
Products: 2 calcium, 2 nitrogen
A welding torch requires 4122.8l of ethylene gas at 0.64 atm what will be the pressure of the gas if ethylene is supplied by a 51.6 l tank
The pressure of the gas if ethylene is supplied by a 51.6 l tank is 51.1355atm
The final pressure of the gas can be calculated by using the formula given by Boyle's law,
P1V1 = P2V2
What is Boyle's law?
Boyle's law relates the compression and expansion of gas at a constant temperature. It states that, At constant temperature the pressure exerted by a gas is inversely proportional to the volume of the given mass of gas.
P1V1 = P2V2
where,
P1 is the initial pressure
V1 is the initial volume
P2 is the final pressure and
V2 is the final volume.
Given data:Initial volume V1= 4122.8L
Initial pressure P1= 0.64atm
Final volume V2= 51.6L
Final pressure P2= ?
0.64*4122.8= P2*51.6
P2= 2638.592/51.6
P2= 51.1355atm
Hence the final pressure of the gas is 51.1355atm
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For a phase change, H = 2 kJ/mol and S = 0.017 kJ/(K-mol). What are
G and the spontaneity of the phase change at 500 K?
A. G=-6.5 kJ; nonspontaneous
B. G= 10.5 kJ; spontaneous
C. G= 10.5 kJ; nonspontaneous
D. G=-6.5 kJ; spontaneous
The reaction has a change in free energy of -6.5 kJ and is spontaneous Option D.
What is a spontaneous reaction?The term spontaneous reaction refers to a reaction that occurs with n external input of energy. We know that a spontaneous reaction is one in which the value of the change in free energy is negative. If the change in the free energy is positive then the reaction is nonspontaneous.
If the value of the change in free energy is zero then it follows that the reaction has attained equilibrium.
Now;
ΔG = ΔH - TΔS
ΔH = 2 kJ/mol
T = 500 K
ΔS = 0.017 kJ/(K-mol)
When we substitute values;
ΔG = 2 kJ/mol - (500 K * 0.017 kJ/(K-mol))
ΔG = -6.5 kJ
It the follows that the reaction has a change in free energy of -6.5 kJ and is spontaneous Option D.
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what is saturated solution?12
Answer:
A solution in which the maximum amount of solvent has been dissolved
Explanation:
For example, 36g of salt in 100g of water.
Radiometric dating allows scientists to figure out the absolute age of an event.
A. What is a half-life?
B. Which of these four radioactive elements would you choose to date a specimen from the most recent epoch?
Half-life in geology is defined as the time it takes for a radioactive material or element to decay half its original quantity into a daughter radiogenic isotope.
From the radioactive elements listed the Carbon-14 would be most preferable for dating a specimen.
What is radiometric dating?Radiometric dating is defined as the process that is used by scientists to calculate the age of geologic materials.
From the data given in the table above, the radioactive element with the most recent half-life is carbon-14 being 5,730 years.
The uses os Carbon-14 include the following:
Used to measure the age of wood,Used to measure sources of chloride and the age of waterResearchers can use that decay as a kind of clock that allows them to peer into the past.Used in studying abnormalities of metabolism that underlie diabetes, gout, anemia, and acromegaly.The carbon-14 is preferably used for dating specimen because it is the most stable and accurately dates archaeological artifacts.
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Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases?.
Dalton's law of partial pressures states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases.
What is partial pressure?Partial pressure is defined as the pressure exerted by individual gas constituents that makes up a mixture of gases.
According to Dalton's law of partial pressures which states that the total pressure by a mixture of gases is equal to the sum of the partial pressures of each of the constituent gases.
This can be represented mathematically by the following:
P = P1 + P2
Where P = total pressure
P1 = partial pressure of gas 1
P2 = partial pressure of gas 2.
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John has been feeling ill all day. He arrives home from work and takes his temperature. Unfortunately, the thermometer shows his temperature in Celsius, and he can’t get it to change. It reads 40 degrees Celsius. What is his temperature in Fahrenheit?
Answer:
[tex]40 \times 1.8 + 32 = 104[/tex]Explanation:
The best way to change Celsius to Fahrenheit is to times it by 1.8 then plus 32
The density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 via a combustion reaction
The answer is 9.94 ml.
What is density?Density is a word we use to describe how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass). Another way to put it is that density is the amount of mass per unit of volume. If an object is heavy and compact, it has a high density.Given,
The density of ethanol, C2H5OH = 0.789 g/mL
[tex]n (CO_{2} ) = \frac{m}{M} = \frac{15G}{44 g/mol} } = 0.341 mol;[/tex]
[tex]n ( C_{2} H_{2} OH) = \frac{n (CO_{2}) }{2} = \frac{0.341}{2} = 0.1705 mol;[/tex]
[tex]m (C_{2} H_{2} OH) = 0.1705 mol * 46 g/ mol[/tex] = 7.843 g
[tex]V (C_{2} H_{2} OH ) = \frac{7.843}{0.789} = 9.94 ml.[/tex]
Therefore, the answer is 9.94 ml
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The complete question is -
If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according to the following chemical equation?
C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
please help with question #2
The Ksp of the solution is 3.2 * 10^-8.
What is Ksp?The Ksp is called the solubility product . We know it to be the equilibrium constant that shows the extent to which a substance is dissolved in solution.
Now given that;
CaF2(s) ⇔ Ca^2+(aq) + 2F^-(aq)
Ksp = [ Ca^2+] [F^-]^2
Ksp = [0.002] [0.004]^2
Ksp = 3.2 * 10^-8
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Which best describes the oxidizing agent in this reaction?
Cl2(aq) + 2Br–(aq) Right arrow. 2Cl–(aq) + Br2(aq)
Bromine (Br) is the oxidizing agent because it gains an electron.
Bromine (Br) is the oxidizing agent because it loses an electron.
Chlorine (Cl) is the oxidizing agent because it gains an electron.
Chlorine (Cl) is the oxidizing agent because it loses an electron.
For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.
What is the oxidizing agent?In a redox reaction, the oxidizing agent is the one that gains electrons, causing the other element to oxidize.
Let's consider the following redox reaction.
Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq)
The corresponding half-reactions are:
Reduction: 2 e- + Cl₂(aq) ⇒ 2Cl⁻(aq)
Oxidation: 2 Br⁻(aq) ⇒ Br₂(aq) + 2 e-
Which best describes the oxidizing agent in this reaction?
Bromine (Br) is the oxidizing agent because it gains an electron. NO. Br is the reducing agent.Bromine (Br) is the oxidizing agent because it loses an electron. NO. Br is the reducing agent.Chlorine (Cl) is the oxidizing agent because it gains an electron. YES.Chlorine (Cl) is the oxidizing agent because it loses an electron. NO. Cl gains electrons.For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.
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Answer:
C: Chlorine (Cl) is the oxidizing agent because it gains an electron.
Explanation:
Please help! Is there another way that 3.40x10^-19J can be imputed on a computer. I have the right answer but it is wrong.
An element emits light at a wavelength of 584 nm. What is the energy of the photon with that wavelength?
Write your answer in scientific notation with the appropriate significant figures and unit. The exponent of 10 is written with the carat (^) symbol, so 10^n.
The energy of the photon with the wavelength of 584 nm is 3.4×10¯¹⁹ J
How to determine the frequency of the photonWavelength (λ) = 584 nm = 584×10⁻⁹ mSpeed of light (v) = 3×10⁸ m/sFrequency (f) = ?f = v / λ
f = 3×10⁸ / 584×10⁻⁹
f = 5.14×10¹⁴ Hz
How to determine the energyPlanck's constant (h) = 6.626×10¯³⁴ JsFrequency (f) = 5.14×10¹⁴ HzEnergy (E) =?E = hf
E = 6.626×10¯³⁴ × 5.14×10¹⁴ Hz
E = 3.4×10¯¹⁹ J
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Relative humidity is described as: Group of answer choices a basically unused concept when it comes to weather topics. the amount of water vapor in the air at a given temperature expressed as a percentage of the water vapor capacity of the air. the amount of water vapor in the air compared to the normal amount. the amount of moisture in the air relative to your own sensible feelings.
Correct answer:
The relative humidity is best described as the amount of water vapor in the air at a given temperature expressed as a percentage of the water vapor capacity of the air.
What is relative humidity?
The ratio of the current absolute humidity to the highest absolute humidity is known as relative humidity (which depends on the current air temperature).
Water vapor is also measured by relative humidity, which is stated as a percentage but RELATIVE to the air's temperature. In other words, it is a comparison between the amount of water vapor that is actually present in the air and the maximum amount of vapor that is possible for the air at the current temperature.
With the same quantity of absolute/specific humidity, air will have a HIGHER relative humidity if it is cooler and a LOWER relative humidity if it is warmer because warm air may contain more water vapor (moisture) than cold air. The actual amount of moisture (absolute humidity) in the air is what we "feel" outside.
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In the lab, you looked at speed-time graphs to determine the acceleration of the cart for each of the three fan speeds. what was the acceleration of the cart with low fan speed? cm/s2 what was the acceleration of the cart with medium fan speed? cm/s2 what was the acceleration of the cart with high fan speed? cm/s2
Answer:
See below.
Explanation:
Acceleration is the change in velocity over a period of time.
Let vi be the initial velocity.
Let vf be the final velocity.
t is the time it took to go from vi to vf.
Acceleration is (vf-vi)/t
If the initial velocity was 2 cm/s and the final velocity was 10 cm/s, the object would have incresed it's velocity by (10 - 2) or 8 cm/s. If iit took 10 seconds to reach vf, the acceleration would be:
(8 cm/s)/(10 s) = 0.8 cm/s^2
What was the purpose of varying the concentrations of sodium alginate and CaCl2?
To determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.
What is concentration?The concentration of a substance simply means the amount of the substance in solution. Thus we are looking at the amounts of sodium alginate and CaCl2 in the system.
The concentrations of the sodium alginate and CaCl2 is varied in order to determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.
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You want to control the temperature of an enzyme-controlled reaction that is taking place inside a flask. What is the most effective way to keep the reaction at a controlled and steady temperature?
Use of thermostat is the most effective way to keep the reaction at a control temperature.
What is the most effective way to keep the reaction in control?The reaction takes place in a thermostat is the most effective way to keep the reaction at a controlled and steady temperature because thermostat regulates the temperature of that solution which is placed in it. If the temperature goes higher then the extra heat is released from the system.
So we can conclude that use of thermostat is the most effective way to keep the reaction at a control temperature.
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4. A 0.51 kg solution contains 87 mg of potassium iodide. Calculate the W/W concentration
of this solution.
Taking into account the definition of percentage composition, the percent composition of potassium iodide in this sample is 0.017%.
Definition of percent compositionThe Percentage Composition is a measure of the amount of mass that an element occupies in a compound and indicates the percentage by mass of each element that is part of a compound.
To calculate the percentage of composition, it is necessary to know the mass of the element in a known mass of the compound.
Percentage Composition in this caseIn this case, you know that a 0.51 kg (or 510000 mg, being 1 kg= 1000000 mg) solution contains 87 mg of potassium iodide.
Dividing the mass amount of potassium iodide present in the compound by the mass of the sample and multiplying it by 100 to obtain a percentage value, the percentage composition of potassium iodide is obtained:
[tex]percentage composition of potassium iodide=\frac{87 mg}{510000 mg} x100[/tex]
percentage composition of potassium iodide= 0.017%
Finally, the percent composition of potassium iodide in this sample is 0.017%.
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What is the element with the abbreviated electron configuration [kr]5 s 24 d 8?
The element with the abbreviated electron configuration is palladium.
Abbreviated electron configurationsElectron configurations can be abbreviated using the noble gas configuration. The noble gas elements have completely filled orbitals.
The noble gases are:
Helium with an atomic number of 2Neon with an atomic number of 10Argon with an atomic number of 18Krypton with an atomic number of 36And so on.For example, an element with the atomic number 4 can have its electron configuration written as [He] [tex]2S^2[/tex].
An element with the abbreviated atomic number [Kr] [tex]5s^2[/tex] [tex]4d^8[/tex] has a total of the atomic number of Kr + 2 + 8.
36+2+8 = 46 electrons.
The element with the atomic number of 46 is palladium.
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How does a conjugate acid differ from its conjugate base?
The conjugate acid is differ from its conjugate base as, conjugate acid is formed by strong base whereas conjugate base is formed by strong acid.
conjugate base is differ from conjugate acids by the presence of the proton. The conjugate acid is formed when proton is added to the bases whereas conjugate bases is formed when proton is released by the acids.
Example of corrugate acids are given below.
[tex]NH_{3}[/tex] → [tex]NH_{2} ^{-} +H^{+}[/tex]
In the above example [tex]NH_{2} ^{-}[/tex] is conjugate acids.
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i need help asapppp
You are a marine paleontologist working on the sediments in
the Mediterranean Sea. Seventeen different locations have
been investigated. Over four months your team found and
collected material that may once have been a part of an
ancient seabed. If it was an ancient seabed, it is likely to
contain fragments of shells and other fossils. After careful
analysis, you found one chemical to be predominant in all
seventeen samples. The percentage composition of this
compound was found to be 40.00% calcium, 11.99% carbon,
and 48.01% oxygen. The molar mass of the unknown
compound is 100.09 g/mol.
1. Find the empirical and molecular formulae for the unknown
compound (substance X). What is the name of this
compound?
The molecular formula of the compound is CaCO3.
What is the molecular formula?The molecular formula is the formula of the compound that shows the number of atoms present in the molecule.
Now, we have that;
Ca - 40.00/40 C - 11.99/12 O - 48.01/16
Ca - 1 C - 1 O - 3
The empirical formula of the compound is CaCO3
Now;
[40 + 12 + 3(16)]n = 100.09
n = 100.09 /100
n = 1
Hence, the molecular formula of the compound is CaCO3.
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A company sells a natural medicine with plant ingredients to help treat dementia, a disease in which people have a hard time remembering things. the natural ingredients in the medicine are most likely from which type of plant?
The type of plant should be ginkgo.
Ginkgo biloba is a popular herbal supplement used to improve memory and prevent dementia, presumably due to its antioxidant properties or anti-amyloid aggregation effects.
What is Dementia?Dementia is a term used to describe when a person's loss of certain behavioral abilities, such as remembering, thinking, and reasoning, interferes with their daily activities and life.
Dementia occurs when neurons in the brain stop functioning, lose their ability to communicate with other cells in the brain, and die. When people develop dementia, they may have problems with a variety of cognitive functions.
What Are Ginkgo Trees Used For?Aside from its decorative aspects, ginkgo biloba is a medical herb with numerous benefits. The tree is frequently used to treat a variety of ailments, including:
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A gas sample of 2.31 atm of oxygen gas and 3.75 atm of hydrogen gas that react to form water vapor. Assume the volume of the container and the temperature inside the container does not change.
Mole fraction of Oxygen=0.381
Mole fraction of Oxygen= (range of moles of oxygen) ÷(general moles)
also, mole fraction of oxygen = (partial stress of oxygen) ÷ (total strain)
consequently , mole fraction of Oxygen= (2.31 atm)÷(2.31 atm + 3.75 atm)
= 0.381
The mole fraction may be calculated by means of dividing the variety of moles of 1 element of a solution by the entire quantity of moles of all the additives of a solution. It is cited that the sum of the mole fraction of all of the components inside the solution should be identical to 1.
Mole fraction is a unit of awareness. in the solution, the relative amount of solute and solvents are measured by way of the mole fraction and it's far represented through “X.” The mole fraction is the variety of moles of a selected aspect inside the answer divided by way of the entire range of moles in the given answer.
Mole fraction is the ratio between the moles of a constituent and the sum of moles of all ingredients in a mixture. Mass fraction is the ratio between the mass of a constituent and the full mass of a mixture.
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Assuming that only the listed gases are present, what would the mole fraction of oxygen gas be for each of the following situations? A gas sample of 2.31 atm of oxygen gas and 3.75 atm of hydrogen gas react to form water vapor. Assume the volume of the container and the temperature inside the container does not change.
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