10. A sample of a pure compound contains 12.23 g of nitrogen and 15.01 g of oxygen. The molar mass of this pure compound is about 90 g. Determine the empirical formula, the molecular formula, and the molar mass of this compound.

Q: A particular antioxidant is 56.5% C, 5.7% H, and 37.7% O by mass.  Determine the empirical formula…

A: Let consider the mass for compound = 100 gram Therefore 100 gram compound contains., mass of carbon…

Q: When 2.750 g of the oxide of lead is stronglyheated, it decomposes and produces 0.0640 g of oxygen…

A: The determination of the simplest form of a compound is called its empirical formula. It is…

Q: A 0.858-g sample of copper was reacted with oxygen to form 1.074 g of copper oxide. Determine the…

A: Given, mass of copper sample = 0.858 g Mass of copper oxide formed = 1.074 g Empirical formula of…

Q: Analysis of a particular compound results in a mass percent composition of 57.14% C, 4.80% H, and…

A: From the CHN analysis we can calculate the empirical formula .

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: A compound consisting of B, N, and H undergoes elemental analysis. The % composition by mass is…

A: Given,Percent of B in the compound = 40.28 %Percent of N in the compound = 52.20 %Percent of H in…

Q: A compound is composed of 73.1 % G e and 26.9 % O. What is the empirical formula?

A: Given : Mass percent of Ge = 73.1 %  And mass percent of O = 26.9 % Since the compound contains only…

Q: What is the difference between an empirical formula and a molecular formula? Provide an example.

A: There are three types of chemical formulas:-  Empirical formula is the simplest whole number of…

Q: What is the simplest formula (Empirical Formula

A: Given :-  Percent composition of Si = 46.67 %  Percent composition of O = 53.33 % To determine :-…

Q: Mandelic acid is an organic acid composed of carbon (63.15%), hydrogen ( 5.30%), and oxygen…

A:

Q: A 1.7500 g sample of a zinc compound ("ZnX") contains 0.8400 g of zinc. What is the molar mass of…

A: Given the mass of the unknown compound, ZnX = 1.7500 g Given the formula of the unknown compound is…

Q: How many K atoms are present in 3.48 g of KOH formula units? Express your answer in scientific…

A: In order to find the number of potassium atoms present we first write down the given data: Mass of…

Q: A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.-g sample of this compound. The…

A: Given, Mass % of C = 80.0 % Mass % of H = 20.0 % Mass of the compound = 100 g Empirical formula of…

Q: Upon combustion, an unknown compound containing only carbon and hydrogen produces 60.48 g carbon…

A: As we know that in any combustion reaction mole is CO2 is equal to no of carbon in hydrocarbon while…

Q: A compound that consists of nitrogen and oxygen is found to be 30.4 % nitrogen by mass. The molar…

A: Given : Nitrogen by mass = 30.4% Molar mass is in between 90g/mol and 100g/mol

Q: Determine the molecular formula of a compound that is made of 54.5 g of carbon, 9.1 g of hydrogen,…

A: The solution is as follows :

Q: Determine the empirical formula of a 175.45 g sample that contains 47.74 g Nitrogen , 6.82 g…

A: Given  47.74 g Nitrogen , 6.82 g hydrogen and 120.9 g chlorine. Moles of N = 47.74/14 = 3.41 mol…

Q: A 170.00 g sample of an unidentified compound contains 29.84 g sodium, 67.49 g chromium, and 72.67 g…

A: Given :-  Mass of Na = 29.84 g  Mass of Cr = 67.49 g  Mass of O = 72.67 g  To be determined :-…

Q: A compound is found to be 63.65% N and 36.35% O by mass. Determine its empirical formula.

A:

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: A sample compound is 46.7% oxygen, 51.7% chlorine, and 1.5% hydrogen. What is the empirical formula…

A:

Q: A 6.117gram sample of cobalt is heated in the presence of excess fluorine. A metal fluoride is…

A: We have to predict the formula for metal fluoride.

Q: Determine the empirical formula for a compound that contains C, H, and O. It contains 52.14% C, and…

A: % of H = 100-52.14-34.73= 13.13  Suppose we have 100 g sample . So moles of C =…

Q: Combustion analysis of a compound yields: C 78.52%, H 8.39%, N 8.33%, and O 4.76%. Determine the…

A:

Q: a 9.37 g sample contains 0.731 g of carbon and 8.639 g of chlorine. determine the empirical formula…

A: To calculate the empirical formula of the compound, first it is required to calculate the number of…

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: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

A:

Q: If 2.50 g of aluminum metal is heated in Fluorine gas it’s found that 5.28g will combine with…

A: Given data,  Mass of aluminium = 2.50 g  Mass of F = 5.28 g

Q: Determine molecular formula. An organic compound that only contains C, H, and O was subjected to…

A: Since the compound is made up of only C, H and O. Hence we can assume the empirical formula of…

Q: 1.651 g of Silver is combined with 0.1224 g of oxygen. Find the empirical formula.

A: moles of silver combining = mass / atomic mass atomic mass of Ag = 108 g/mol Hence moles of Silver =…

Q: A sample of naphthalene was analyzed in the laboratory and it was determined that the sample…

A: Number of moles (mol) = Given mass (g)Molar mass (g/mol)Given that:Number of moles= 0.457 molesMolar…

Q: What information do we need to determine the molecular formula of a compound from the empirical…

A:

Q: A certain chemical substance has the following percent composition by mass. Element Mass Percent…

A: Supose we have 100 g of given compound   therefore mass of C = 43.45 g  mass of H = 8.02 g  mass of…

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: 7.00 g of iron is reacted with 3.00 g of oxygen. Find the empirical formula.

A: Since moles of Fe reaction = mass of Fe / atomic mass of Fe  and moles of O reacting = mass of O /…

Q: Determine the empirical formula for a compound that is composed of 40.60% carbon, 6.7% Hydrogen and…

A:

Q: A sample of an unknown molecule contains 7.391 g of carbon, 0.6978 g of hydrogen, 1.078 g of…

A:

Q: A sample compound contains 19.97g Ti and 13.37g O. Determine the empirical formula of the compound.

A:

Q: A flask contains 0.200 mol of liquid bromine. Br2. Determine the number of bromine molecules present…

A:

Q: Determine the molecular and empirical formulas of a compound containing 141.34 g C, 25.893 g H, and…

A:

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: The Elemental analysis of a compound sample informed that it contains 7.83 g of oxygen, 4.35 g of Cl…

A: We need all MW of the elements (from the periodic table) MW of Na: 23 g/gmol MW of Cl: 35 g/gmol MW…

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.