mass: mole: mo

Q: Calculate the number of C atoms in 0.866 mole of C.

A: Given, moles of C = 0.866 mole Number of C atoms in 0.866 mole of C = ?

Q: Calculate the mass, in grams, of 862 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: One mole if any substance have 6.022*10^23 atom/ particles/ion etc thus here knowing the no of moles…

Q: Arsenic reacts with oxygen to form a compound AsxOy. If 2.354 g of arsenic forms 3.611 g of the…

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Q: A student obtained the following mass composition of a compound: C: 50.89% H: 8.51% O: 40.60%. The…

A: Given Percentages carbon = 50.89 ℅ hydrogen = 8.51 ℅ oxygen = 40.60 ℅

Q: 0.172 g of Mn was heated in the presence of oxygen to make 0.272 g of MnxOy.  Based on this data,…

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Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: Galantamine is a drug given to patients who have Alzheimer's disease. Its chemical formula is…

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Q: 4. In an experiment, 3.2 moles of oxygen atoms reacted with 121.3 g of calcium to form a new…

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Q: An 85.00 g sample of an unknown compound contains 24.26 g molybdenum, 24.33 g sulfur, and the rest…

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Q: A 8.4877 g sample of a new compound has been analyzed and found to contain the following masses of…

A: To calculate the emperical formula,  the number of moles of each element should be calculated. Then…

Q: What is the mass, in grams, of 2.84 x 10^23 atoms of lead?

A: Given that, No of atoms  lead =  2.84 x 10 23 atoms  We know that,  1 mole = 6.022 x 1023 atoms i.e,…

Q: An organic compound that has the empirical formula CHO has a molecular mass of 174amu. WHat is the…

A: Empirical formula display the simple ratio of the atoms present in a molecule and molecular formula…

Q: C4H10 and C6H12 are both hydrocarbons. Whic one contains higher mass percentage of carbon?

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Q: How many total atoms are in 0.870 g of P,0,?

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Q: The empirical formula of styrene is CH; its molar mass is 130.2 g/mol. What is the molecular formula…

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Q: a compound that contains only carbon, hydrogen, and oxygen is 68.5% C and 8.63% H by mass. what is…

A: The compound is composed of carbon, hydrogen, and oxygen atoms. The empirical formula of the…

Q: Calculate the mass, in grams, of 762 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: In 1 mol of Fe or 55.85 g of Fe, the number of Fe atoms is 6.022×1023 atoms.

Q: The number of hydrogen atoms in a mole is Avogadro’s number, 6.02 * 1023. If one mole of the gas has…

A: This problem can be solved by knowing that one mole of substance consists of 6.022×1023 atoms.

Q: What would be the number of moles for calcium arbonate if it is  66.0 g T, also the mass.

A: Molar mass of calcium carbonate that is Caco3 is 100g/mol

Q: 81.77 moles of methane to molecules

A: Given: Moles of methane = 81.77 mol.

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Given : Moles of H2O2 = 1 mol

Q: What percent by mass of iron(II) phosphate is iron?

A: The molecular formula of Iron(II)phosphate is Fe3(PO4)2. Percentage by mass of any component can be…

Q: The empirical formula of a compound is CH, If the molar mass of this compound is about 13, what is…

A: If empirical formula of compound is =  CH Molecular formula of compound is = (CH)n n = Molar mass /…

Q: A sample of 0.73798g of pure sodium metal is reacted with chlorine and the final mass of compound is…

A: To determine the empirical formula of sodium-chlorine compound from the reaction , we need to find…

Q: Convert the following Moles to the number of Particles. (1) 0.275 mol of Aluminum, Al

A: (B)  1) given :-  Number of moles of Al = 0.275 mol  To be calculated :-  No. of atoms of Al

Q: Calculate the mass in grams of 14 atoms of Ca.

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Q: Calculate the mass, in grams, of 732 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: Number of mol of Fe = Number of atoms/Avogadro's number                                    =…

Q: Convert between mass and moles of an element. What amount of oxygen, in moles, does 49.8 g 0…

A: Given that, mass of O=49.8 g  molar mass of O= 16 g mol-1 moles of O=?

Q: 0.104 moles of the compound XY, has a mass of 6.663 grams. What is the molar mass of this compound?…

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Q: What is the molecular formula of a compound given the molar mass of the compound is 60.04 gram and…

A: Given,  Empirical formula of the compound = NH  Molar mass of the compound = 60.04 g/mol  Molecular…

Q: Calculate the mass, in grams, of 392 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g) .

A: 392 atoms of Iron Calculate the mass of Iron .Molar mass of Iron is 55.85 gmol

Q: The percent by mass of nitrogen for a compound is found to be 46.7%. Which of the following could be…

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Q: Arsenic reacts with oxygen to form a compound AsxOy. If 2.354g of arsenic forms 3.611g of the…

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Q: Styrene Empriical formula is CH. Wh at mass of styrene contain 1.98x 10^21 Atoms of hydrogen. The…

A: The objective of the question is to find out the mass of Styrene that contains a specific number of…

Q: How many total atoms are in 0.870 g of P,0,?

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Q: the analysis of a compound shows that it contains 5.4 mol c, 7.2 mol h, and 1.8 mol n. what is the…

A: Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: There is a series of nitrogen oxides that have the general formula NxOy.  What is the empirical…

A: Given :-  General formula of nitrogen oxide = NxOy  Percent composition by mass of N = 25.94%  To…

Q: The actual yield of one of the reactions in 43.5g. What was theoretical yield in the laboratory if…

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Q: the number of moles of chlorine in 12.5 g of carbon tetrachloride?

A: Number of moles of chlorine in 12.5g of CCl4. Here first we find moles of CCl4 in 12.5g that is 0.08…

Q: In an experiment, 3.2 moles of oxygen atoms reacted with 121.3 g of calcium to form a new compound.…

A: Atomic mass of oxygen atom = 16 g/mol  moles of oxygen atoms =3.2 moles  mass of oxygen atoms = 3.2…

Q: 0.172 g of Mn was heated in the presence of oxygen to make 0.272 g of MnxOy.  Based on this data,…

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Q: A student weighed out 1.106 g of KHP How many moles was that?

A: A student weighed out 1.106 g of KHP. The moles of KHP in 1.106 g are to be calculated.

Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.