The formula of the compound will be [tex]Mg_2Ga[/tex]
Empirical formula of compoundsThe compound contains magnesium and gallium. The symbol and magnesium and gallium is Mg and Ga respectively.
Magnesium content is 41.1%
Gallium content is 58.9%
First, find the number of moles of each element in the compound by dividing their percentage compositions with their respective molar weights.
Mg = 41.1/24.505 =1.6772
Ga = 58.9/69.723 = 0.8448
Next, divide each number of moles by the smallest number of moles.
Mg = 1.6772/0.8448 = 2
Ga = 0.8448/0.8448 = 1
Thus, the formula of the compound is [tex]Mg_2Ga[/tex]
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Calculate the mass of 2.5 moles of NaCl?
The mass of 2.5 moles of NaCl is 146.25 g.
What is a Moles?A mole is defined as the quantity of a material that includes precisely 6.02214076 X 1023 of the substance's elementary entities.A substance is said to have a mole with a mass equal to 12.000 g of 12C and the same number of basic units as atoms.The mole can be used to calculate the quantities involved in chemical processes and identify the simplest formula of a compound. The molarity notion, which is related, helps discuss reactions in solutions. The number of moles of a solute in a liter of solution is known as molarity (M).Quantities that cannot be quantified using units like grams or milligrams are referred to as moles. A mole thus counts the quantity of atoms, ions, or molecules.The mass of 2.5 moles of NaCl:
So, one mole of NaCl weighs 58.44 g. A 2.5 M solution is 2.5 moles per liter (Molarity is just the number of moles per liter). Therefore, 0.5 L would contain 1.25 mole. Hence, you would need 58.5×2.5 = 146.25 g
m(NaCl) = M×n
m(NaCl) = 58.5×2.5 = 146.25 g
The mass of 2.5 moles of NaCl is 146.25 g.
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The mass of NaCl is 146.25g .
Calculate the molar mass of NaCl ?
The Atomic mass of Na is 23g
Atomic mass of Cl is 35.5g
In the formula there is only one molecule of each element is present so,
Molar mass =23×1+35.5
. →58.5g/ mol
We have given ,
moles of NaCl →2.5 mol
molar mass of NaCl we have found earlier ,
58.5g/mol
No of moles = weight of NaCl /Mb
Mb represent molar mass ofNaCl
2.5=Wb/58.5
Weight of Nacl= 58.5×2.5
. →146.25g
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Given the reaction below, which is the being oxidized?
Mg + Cl2 Right arrow. Mg2+ + 2Cl–
2CI–
CI2
Mg
Mg2
The ion that is oxidized in the above redox reaction is Mg (option A). Details about oxidation can be found below.
What is oxidation in a redox reaction?Oxidation in a redox reaction is a reaction in which the atoms of an element lose electrons and the oxidation state of the element increases.
According to this question, the redox reaction is given as follows: Mg + Cl2 = Mg2+ + 2Cl–
As shown in the above redox reaction, Magnesium oxidation number increases from 0 to 2+, therefore, is the one being oxidized.
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AnswerAAAAA
Explanation:
A student dissolves a mass of ammonium nitrate in water and notices that the temperature of the mixture decreases by
2.7 °C. The student concludes that the process of dissolving ammonium nitrate is
The conclusion of the student would be that the dissolution of ammonium nitrate is endothermic.
What are endothermic reactions?They are reactions in which heat is absorbed from the surrounding. The consequence is that the reaction mixture's temperature is always lower.
Thus, the energy of the products is always higher than the energy of the reactants in endothermic reactions.
For endothermic reactions, the enthalpy change is always positive.
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Ionic compounds are ______ at room temperature and generally have ______ melting and boiling points.
Thus all ionic compounds are solids at room temperature and generally they have very high melting and boiling points.
There are strong electrostatic attractive forces between the positive and negative ions in ionic solids. These extremely powerful forces must be overcome in order to melt the solid. As a result, all ionic compounds are solids at room temperature and have extremely high melting and boiling points.
E.g. MgF2 has a melting point of. 1261°C and a boiling point of 2239°C
The strong forces between the ions are difficult to break, which also explains why ionic compound crystals are hard. Ionic substances form massive ionic lattices with oppositely charged ions.
What are the characteristics of ionic compounds?Ionic compounds are made up of charged particles known as ions. It has a massive lattice structure with strong electrostatic attraction forces. Giant ionic lattices are regular structures found in ionic compounds.
In Chemistry, some examples of ionic compounds are:
Sodium chloride.Sodium oxide.Lithium chloride.Aluminum chloride.Potassium bromide.Learn more about ionic compounds:
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Magnesium and calcium have similar chemical properties because their atoms in the ground state have.
Magnesium and calcium have similar chemical properties because they have the same number of electrons in their valence shells.
What does magnesium and calcium have in common?
The valence/outermost shell of magnesium and calcium both has two electrons. An element's chemical characteristics are dictated by how its electrons are arranged in their orbits around the nucleus. The same number of protons and electrons means that an element's chemical behavior is fundamentally determined by its atomic number, which explains why Mg and Ca share the same chemical properties.
On the periodic table, magnesium and calcium are both located in the second vertical column. Magnesium and calcium are alkaline earth metals, just like all Group 2 elements. Both of them are salt-forming soft, silver-colored metals that respond fast to halogen gases like fluorine, chlorine, and bromine.
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Menthol, the substance we can smell in mentholated cough drops, is composed of C, H, and O. A 0.1005g sample of menthol is combusted, producing 0.2829g of CO2 and 0.1159g of H2O.
What is the empirical formula of menthol?
If the compound has a molar mass of 156 g/mol, what is its molecular formula?
The Empirical formula of compound is C₁₀H₂₀O₁. The Molecular Formula of compound is C₁₀H₂₀O₁.
What is Empirical Formula ?Empirical formula is the simplest whole number ratio of atoms present in given compound.
[tex]\text{Mass of C} = 0.2829\ g\ CO_2 \times \frac{12\ g\ C}{44\ g\ CO_2}[/tex]
= 0.07720 g C
[tex]\text{Mass of H} = 0.1159\ g\ H_2O \times \frac{2\ g\ H}{18\ g\ H_2O}[/tex]
= 0.01297 g H
Mass of O = Mass of methanol - mass of C - mass of O
= 0.1005 g - 0.07720 g - 0.01297 g
= 0.01033 g
Element Mass/g Moles Ratio Integers
C 0.07720 0.006428 9.956 10
H 0.01297 0.01287 19.93 20
O 0.01033 0.0006456 1 1
The Empirical formula of compound is C₁₀H₂₀O₁.
How to find the Molecular formula of compound ?Molecular formula = Empirical formula × n
[tex]n = \frac{\text{Molar Mass}}{\text{Empirical formula weight}}[/tex]
[tex]= \frac{156}{156}[/tex]
= 1
Molecular formula = n × Empirical formula
= 1 (C₁₀H₂₀O₁)
= C₁₀H₂₀O₁
Thus from the above conclusion we can say that The Empirical formula of compound is C₁₀H₂₀O₁. The Molecular Formula of compound is C₁₀H₂₀O₁.
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The value of the equilibrium constant K is a measure of how far the reaction proceeds toward the products at a given temperature. A small value of K indicates that the reaction favors the _____, whereas a large value of K indicates that the _____ will be present in a higher proportion.
The value of the equilibrium constant K is a measure of how far the reaction proceeds toward the products at a given temperature. A small value of K indicates that the reaction favors the reactants, whereas a large value of K indicates that the products will be present in a higher proportion.
What is Equilibrium Constant ?The equilibrium constant of a chemical reaction usually denoted by the symbol K that express the relationship between the amount of reactants and products when a chemical reaction reaches equilibrium.
It is expressed as:
[tex]K_{c} = \frac{[C]^{c} \times [D]^{d} \times ...}{[A]^{a} \times [B]^{b} \times ...}[/tex]
where,
K = Equilibrium constant
A, B = Products
C, D = Reactants
[A] = equilibrium concentration of A in moles
a = number of moles of A
Thus from the above conclusion we can say that The value of the equilibrium constant K is a measure of how far the reaction proceeds toward the products at a given temperature. A small value of K indicates that the reaction favors the reactants, whereas a large value of K indicates that the products will be present in a higher proportion.
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A weather balloon calibrated at 0.00 °c to have a volume of 12.0 l has what volume at -22.8 °c assuming pressure is held constant?
Considering the Charles's law, the volume at 22.8 °C is 10.9978 L.
Charles's lawCharles's law establishes the relationship between the temperature and the volume of a gas when the pressure is constant.
Charles's law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.
Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:
[tex]\frac{V}{T} =k[/tex]
Considering an initial state 1 and a final state 2, it is fulfilled:
[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]
Volume at -22.8 °CIn this case, you know that:
V1= 12 LT1= 0 °C= 273 KV2= ?T2= -22.8 °C= 250.2 KReplacing in Charles's law:
[tex]\frac{12 L}{273 K} =\frac{V2}{250.2 K}[/tex]
Solving:
V2= [tex]250.2 K x\frac{12 L}{273 K}[/tex]
V2= 10.9978 L
Finally, the volume at 22.8 °C is 10.9978 L.
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The combining power of an element is called ?
A. coefficient
B.subscript
C.periodicity
D.valence number
Answer:
D
Explanation:
Valency is the combining power of an element
What is one off the differences in how the leading and lagging strands of dna molecules synthesize?
The basis of the difference between the leading and lagging strand is that DNA polymerase can join new nucleotides only to the 3' end of the growing strand.
The leading strand is the new DNA strand that continually extends from 5' to 3'. On the lagging strand, Okazaki fragments develop and are linked by DNA ligase activity. DNA polymerase can only attach new nucleotides to the 3' end of the developing strand, which forms the basis of the distinction between the leading and lagging strands.
Therefore, "DNA polymerase can link additional nucleotides exclusively to the 3' end of the developing strand" is the appropriate response.
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What is the total pressure of a mixture of he and h2 if the partial pressures are 320 mm hg and 800 mm hg respectively
Answer:
1120 mm Hg
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How much energy will a sample of aluminum gain when it is warmed from 306 K to 419 K? The specific heat capacity of aluminum is 0.897 J/g.K,
and the mass of the sample is 5.00 g.
Answer:
506.81J
Explanation:
H = MC(T1 - T0)
H = 5 × 0.897 × (419 - 306)
H = 5 × 0.897 × 113
H = 506.81 J
As per specific heat of aluminium ,506.81 J of energy is gained by the sample.
What is specific heat capacity?Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.
It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.
It is given by the formula ,
Q=mcΔT
For the given example, Q=energy
m=mass=5 g, C=0.897 J/g.K
T₂=419 K
T₁=306 K
substituting in the formula ,Q=5×0.897(419-306)=506.81 J.
Thus, 506.81 J of energy is required.
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Which battery terminal should be connected to the anode and what reaction will occur at the anode?
A) The negative terminal of the battery. Cu2+(aq) + 2e- → Cu(s)
B) The positive terminal of the battery. Cu2+(aq) + 2e- → Cu(s)
C) The negative terminal of the battery. Cu(s) → Cu2+(aq) + 2e-
D) The positive terminal of the battery. Cu(s) → Cu2+(aq) + 2e-
E) The negative terminal of the battery where the brass will be oxidized.
F) The positive terminal of the battery where the brass will be oxidized.
The positive terminal of the battery should be connected to the anode .and Cu(s) → [tex]Cu^{+2} (aq)[/tex] + [tex]2e^{-}[/tex] reaction will occur at the anode.
In electrolysis, the two wires or plates dipping into the electrolytic solution is called electrodes.
The battery is galvanic cell which produce electric current. An electrode connected to positive terminal of the battery is called anode. At anode, oxidation ( loss of electrons) is takes place.
Cu(s) → [tex]Cu^{+2} (aq)[/tex] + [tex]2e^{-}[/tex]
An electrode connected to negative terminal of the battery is called cathode. At cathode, reduction ( gain of electrons) is takes place.
[tex]Zn^{+2} + 2e^{-}[/tex] → [tex]Zn(s)[/tex]
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Use the following, balanced equation for the question below:
2Al(s) + 3CuCl₂(aq) → 3Cu(s) + 2AlCl3(aq)
How many moles of aluminum are needed to produce 50.0 grams of aluminum chloride?
Answer:
0.375 moles Al
Explanation:
To find the moles Al, you need to (1) convert grams AlCl₃ to moles AlCl₃ (via molar mass) and then (2) convert moles AlCl₃ to moles Al (via mole-to-mole ratio from equation coefficients). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value (50.0 g).
Molar Mass (AlCl₃): 26.982 g/mol + 3(35.453 g/mol)
Molar Mass (AlCl₃): 133.341 g/mol
2 Al(s) + 3 CuCl₂(aq) -----> 3 Cu(s) + 2 AlCl₃(aq)
50.0 g AlCl₃ 1 mole 2 moles Al
-------------------- x ------------------ x ----------------------- = 0.375 moles Al
133.341 g 2 moles AlCl₃
If a reaction occurs, what will be the products of the unbalanced reaction below?Zn(s) + HCl(aq) -->
A. No reaction will occur
B. ZnH(s) + Cl2(g)
C. ZnCl2(s) + H2(g)
D. HZnCl(s)
The products will be [tex]ZnCl_2(s) + H_2(g)[/tex]
Chemical reactionsZn is higher than hydrogen in the reactivity series. Thus, it will be able to displace hydrogen from the acid.
The equation of the reaction becomes: [tex]Zn(s) + HCl(aq) -- > ZnCl_2 (s) + H_2 (g)[/tex]
Hydrogen gas is released as a result. In fact, it is one of the ways of preparing hydrogen gas in the laboratory.
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What is the purpose of a signal phrase?
6.01 formation of the solar system
Answer: The purpose is to analyze the speed of planets around a central star.
Explanation: using variables
Identify the negative radicals in the following substances:
i. table salt (NaCl)
ii. baking soda (NaHCO,)
iii. washing soda (Na₂CO₂)
iv. lime water (Ca(OH)₂)
The negative radicals will be [tex]Cl^-[/tex], [tex]HCO^-[/tex], [tex]CO_3^2^-[/tex], and [tex]OH^-[/tex] respectively.
What are negative radicals?They are the species that are negatively charged in ion forms.
[tex]NaCl --- > Na^+ + Cl^-[/tex]
[tex]NaHCO --- > Na^+ + HCO^-[/tex]
[tex]Na_2CO_3 --- > 2Na^+ + CO_3^2^-[/tex]
[tex]Ca(OH)_2 -- > Ca^2^+ + 2OH^-[/tex]
Thus, the negative radicals in each of the chemicals are [tex]Cl^-[/tex], [tex]HCO^-[/tex], [tex]CO_3^2^-[/tex], and [tex]OH^-[/tex] respectively.
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The negative radicals as as follows;
NaCl - Cl^-NaHCO3 - HCO3^-Na₂CO3 - CO3^2-Ca(OH)₂ - OH^-What are negative radicals?The negative radicals are the radicals that are negatively charged. Every ionic compound is composed of positively and negatively charged ions.
Let us now identify the negative radicals in the following ionic compounds;
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Which of the following choices represents a balanced chemical equation?
Answer:
the correct answer: 2Ca3(PO4)2 + 6SiO2 -> P4O10 + 6CaSiO3
Explanation:
What is δs° for the reaction so2(s) no2(g) → so3(g) no(g)? substance s°(j/k • mol) so2(g) 248.5 so3(g) 256.2 no(g) 210.6 no2(g) 240.5
The value of ΔS° for reaction is - 22.2 J/K.mol
[tex]SO_{2}(s)+NO_{2} (g)[/tex] → [tex]SO_{3}(g)+NO(g)[/tex]
Calculation,
Given value of S°(J/K.mol) for
[tex]SO_{2}(s)[/tex] = 248.5
[tex]NO_{2} (g)[/tex] = 240.5
[tex]NO(g)[/tex] = 210.6
[tex]SO_{3}(g)[/tex] = 256.2
Formula used:
ΔS° (Reaction) = ∑S°(Product) - ∑S°(Reactant)
ΔS° = (256.2 + 210.6 ) - ( 248.5 + 240.5) = 466.8 - 489 = - 22.2 J/K.mol
The change in stander entropy of reaction is - 22.2 J/K.mol. The negative sign indicates the that entropy of reaction is decreases when reactant converted into product.
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The percentage composition of an organic acid is found to be 39.9% C, 6.7% H, and 53.4% O. The molar mass for the compound is 60.0g/mol. What is the molecular formula
Answer:
C₂H₄O₂
Explanation:
To find the molecular formula of the organic acid, you need to (1) determine the mass of each element (from the given percents), then (2) convert grams of each element to moles (via atomic masses), then (3) find the empirical formula, and then (4) find the molecular formula.
(Step 1)
39.9% C -----> 39.9 g C
6.7% H -----> 6.7 g H
53.4% O -----> 53.4 g O
(Step 2)
Atomic Mass (C): 12.011 g/mol
Atomic Mass (H): 1.008 g/mol
Atomic Mass (O): 15.988 g/mol
39.9 grams C 1 mole
---------------------- x ---------------------- = 3.32 moles C
12.011 grams
6.7 grams H 1 mole
-------------------- x --------------------- = 6.65 moles H
1.008 grams
53.4 grams O 1 mole
---------------------- x ---------------------- = 3.34 moles O
15.998 grams
(Step 3)
The empirical formula is made up of the lowest possible amount of each element in the molecule. These amounts can be found by dividing the molar value of each element by the smallest molar value. In this case, the smallest molar value is 3.32 moles C. The calculated values make up the subscripts in the empirical formula.
3.32 moles C / 3.32 = 1 mole C
6.65 moles H / 3.32 = 2 moles H
3.34 moles O / 3.32 = 1 mole O
Empirical Formula: CH₂O
(Step 4)
To find the molecular formula, you first need to determine the molar mass of the empirical formula. Once you have this value, you need to determine how much you need to scale the formula up by. In this case, the molar mass of the empirical formula is half of the molar mass of the molecular formula. Therefore, you need to multiply the amount of each element in the molecule by 2.
Molar Mass (CH₂O): 12.011 g/mol + 2(1.008 g/mol) + 15.998 g/mol
Molar Mass (CH₂O): 30.025 g/mol
30.025 g/mol x 2 = 60.05 g/mol
CH₂O x 2 = C₂H₄O₂
Is copper and silver nitrate a physical change or Chemical change
Explanation:
One of the most fascinating chemical experiments is the reaction between silver nitrate and copper wire in water. Characterised by fractal-like precipitates, this experiment is a stunning example of a simple redox reaction.
Copper reacting with silver nitrate is a chemical change. In a chemical change, new substances are formed with different chemical properties.
Copper (Cu) is a metal, and silver nitrate is a compound made of silver (Ag), nitrogen (N), and oxygen (O).When copper is added to silver nitrate, a reaction occurs. The copper atoms react with the silver nitrate molecules, resulting in the formation of new substances.
The reaction produces copper nitrate and silver (Ag) as products.Copper nitrate is a compound formed by the combination of copper, nitrogen, and oxygen, while silver remains unchanged.
The color of the solution changes, indicating a chemical reaction has taken place. Copper nitrate is usually a blue-green color, while silver is a metallic silver color.The chemical properties of the substances involved in the reaction are altered. Copper, being a metal, is malleable and conducts electricity, whereas copper nitrate is a compound and does not possess these properties.
Thus, the reaction between copper and silver nitrate is a chemical change because new substances with different properties are formed.
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A solution with a pH = 13 has approximately how many moles of OH– ions per liter?
Answer:
1 × 10-¹ moldm-³
Explanation:
Pkw = PH + POH
14 = 13 + POH
POH = 1
so , [OH-] = 1 × 10-¹ moldm-³
Which rule for assigning oxidation numbers IS correct?
Hydrogen is usually -1.
Oxygen is usually -2.
• A pure group 1 element is +1.
• A monatomic ion is 0.
Answer:
B.) Oxygen is usually -2
Explanation:
Hydrogen is usually +1.
A pure group 1 element is not always +1.
A monoatomic ion can be a range of numbers. However, it must be a charge other than 0.
one model that shows how energy passes from organism to organism is called? 1. an energy link 2. a food chain 3. a phytoplankton cycle
A 1.00 L sample of HCl(aq) is prepared and has a pH of 1.045.
What mass of HCl(g) is dissolved?
The mass of HCl dissolved to form the solution is 3.285 g.
What is the mass of HCl dissolved?The mass of HCl is determined from the pH.
The concentration of hydrogen ions is given as:
[H⁺] = 10⁻1.045 = 0.09
1.0 moles of HCl is produced by 1.0 moles HCL
Moles of HCl = 0.09
Mass of HCl = 0.09 * 36.5
Mass of HCl = 3.285 g
In conclusion, the mass of HCl dissolved is obtained from the pH of the solution.
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The table shows the amount of radioactive element remaining in a sample over a period of time. radioactive decay rate amount of radioactive sample (grams) time (years) 56.0 0 47.1 400 39.6 800 33.3 1,200 28 1,600 part 1: what is the half-life of the element? explain how you determined this. part 2: how long would it take 312 g of the sample to decay to 9.75 grams? show your work or explain your answer.
1. The half life of the element, given the data from the question is 1600 years
2. The time taken for 312 g of the sample to decay to 9.75 grams is 8000 years
1. How to determine the half life of the elementHalf-life is the time taken for half a material to decay.
To determine the half life of the given element, do the following:
Original amount = 56 gHalf the original amount = 56 / 2 = 28 gTime for 28 g = 1600 yearHalf life of element = 1600 yearsHow to determine the timeWe'll begin by determining the number of half-lives that has elapsed. This can be obtained as follow:
Original amount (N₀) = 312 gAmount remaining (N) = 9.75 gNumber of half-lives (n) =?2ⁿ = N₀ / N
2ⁿ = 312 / 9.75
2ⁿ = 32
2ⁿ = 2⁵
n = 5
Finally, we shall determine the time. This can be obtained as follow:
Half-life (t½) = 1600 yearsNumber of half-lives (n) = 5Time (t) =?t = n × t½
t = 5 × 1600
t = 8000 years
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What is the empirical formula for a compound if 300. 00 g of it is known to contain 82. 46224 g of molybdenum, 45. 741 g of chlorine and the rest is bromine?
the empirical formula for a compound is Mo2Br5Cl3.
The empirical components of a compound are the best entire quantity ratio of atoms of every detail within the compound. it's miles decided using statistics from experiments and therefore empirical. as an example, the molecular formula of glucose is C 6H 12O 6 however the empirical formulation is CH 2O.
An Empirical formula is the chemical components of a compound that offers the proportions (ratios) of the elements present in the compound however no longer the real numbers or arrangement of atoms. This will be the lowest complete range ratio of the elements within the compound.
The empirical method of a compound gives the only ratio of the range of various atoms gift, while the molecular formula gives the actual range of each distinctive atom found in a molecule. If the components is simplified then it is an empirical components.
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Two liquids are in a graduated cylinder - liquid a has a density of 1.004 g/cm3 and liquid b has a density of 0.6223 g/cm3 . assuming that they do not mix, which liquid is on top and which liquid is on bottom? where would you expect to find the plastic cube from question #2 if it is dropped into the graduated cylinder with these two liquids?
Liquid B is expected to be at the top while liquid A is found at the bottom.
What is density?The term density has to do with the ratio of the mass of a substance to its volume. Now given that the density of a substance actually shows how much heavy the substance is, it is not difficult to understand that a material that has a low density will flat at the top of a material that has a lower density.
Here we are told that the two liquids do not mix. If they do not mix then it follows that they must have formed a two phase system in which one is at the top of the other. The one that is at the top must have the lower density.
Thus, liquid B is expected to be at the top while liquid A is found at the bottom. From the density of the plastic cue, the cube will be at the top.
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Element m reacts with fluorine to form an ionic compound with the formula mf4. the m cation has 18 electrons. element m is:____.
Element M reacts with fluorine to form an ionic compound with the formula MF₄. The M cation has 18 electrons. Element M is Sn.
What is Ionic Compound ?An ionic compound is defined as the compound made up of ions that formed charge particles when an atom loses or gains electrons.
What is Cation ?Cations are positively charged ions. It forms when an element lose one or more electrons.
The cation which has 18 electrons is Sn. Sn react with fluorine to form an ionic compound with the formula SnF₄ because Sn is large and F is very small in size.
Thus from the above conclusion we can say that Element M reacts with fluorine to form an ionic compound with the formula MF₄. The M cation has 18 electrons. Element M is Sn.
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N analyst prepared a sucrose solution by weighing 1kg of water and add 1.5kg sucrose.estimate the concentration of the resultant solution in (i) mass percent (ii) degree brix
The concentration of the solution in mass percent is 60%.
What is the mass percent?The concentration of a substance can be expressed in mass percent. This refers to the percentage of the solute that is contained in the solution.
Thus we can write;
Mass percent = Mass of solute/ Mass of solution * 100/1
Mass percent = 1.5kg/1.5kg + 1 Kg * 100/1
Mass percent = 60%
Hence, the concentration of the solution in mass percent is 60%.
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