A compound has the composition given in the table below. Molar masses of the elements are also provided. Determine the empirical formula. element Cr C 12.7 12.0 Mass % 36.6 50.7 % Molar mass 52.0 16.0 g/mol

Q: empirical formula

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Q: Calculate mass percent of each element in perchoric acid, HCLO4 ?

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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 18.92 gram sample of copper is heated in the presence of excess fluorine. A metal fluoride is…

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Q: A sample contains 10.0 g C, 2.5 g H, and 5.0 g of O. Calculate the mass percent composition of…

A: Given: Mass of carbon in the sample = 10.0 g Mass of hydrogen in the sample = 2.5 g Mass of oxygen…

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: Combustion analysis of a hydrocarbon produced 33.01 g CO2 and 13.51 g H2O. Calculate the empirical…

A: Solution Given data, The amount of CO2 = 33.01g The amount of H2O = 13.52g Number of moles of…

Q: Consider a compound that produces 5.0 g Al and 19.7 g Cl a. What is the empirical formula of this…

A: Given that : Mass of Al = 5.0 g Mass of Cl = 19.7 g The molar mass of Al is 26.98 g/mol. The molar…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: First calculate percentage ratio  of mole then form formula

Q: Determine the empirical formula of a compound having the following elemental analysis: 52.2% C;…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Complete the table below for calculating the molar mass of the compound carbon tetrachloride. Molar…

A: The complete table for the molar mass of the compound carbon tetrachloride is given below, 1mole of…

Q: A chemist is given a sample of the CuSO4 hydrate and asked to determine the empirical formula of it.…

A: Given,  Mass of hydrated CuSO4 = 42.75 g Mass of Unhydrated salt = 27.38 g  Formula of hydrate = ?

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

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Q: Determine the empirical formula of a compound with mass composition of 67.56% Carbon, 9.94%…

A: Empirical formula is the simplest whole number ratio of the atoms present in the given molecular…

Q: If a compound is composed of 6.2% Hydrogen, 39.5% Oxygen, 37.0% Carbon and 17.3% Nitrogen a.…

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Q: 1. Given: 274.82 g Pb 42.52 g S • 63.66 g O Wanted: percent composition by mass? % Pb % S % O

A: Percent composition by mass of an element is calculated by dividing the number of parts of the mass…

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: 1, A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: From percentage composition by calculating no. Of moles we can calculate empirical formula .

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

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

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Q: What is the empirical formula of a compound composed of 72.36% Fe and 27.64% O by mass?

A: Empirical Formula :-  Empirical formula is the simplest ratio of number of atoms present in a…

Q: A compound has the following percentage composition by mass: copper; 33.88%; nitrogen, 14.94%;…

A: Given,Mass percentage of copper = 33.88%.Mass percentage of nitrogen = 14.94%.Mass percentage of…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: (1) Empirical formula is the representation of different elements in a given compound as a  Normal…

Q: A metal has the mass  of 12.00 g and 5.850 x 1022 atoms.  Calculate molar mass of the metal.

A: Formula use is, no of moles = weight/ molar mass

Q: An organic compound contains 24.24 % Carbon, 4.04 % Hydrogen, and 71.72 % Chlorine. What is its…

A: Given, Mass % of carbon (C) = 24.24 % = 24.24 g Mass % of hydrogen (H) = 4.04 % = 4.04 g Mass % of…

Q: A 0.5998-g sample of a new compound has been analyzed and found to contain the following masses of…

A: Given, mass of sample of compound = 0.5998 g The sample contains, mass of Carbon (C) = 0.2322 g mass…

Q: 28) 8.42 x 1027 atoms of tin 29) 6.39 x 1018 atoms of sulfur

A: Given  8.42 × 1027 atoms of tin  6.39 × 1018 atoms of sulfur  5.99 × 1030 molecules of SiO2

Q: A newly discovered metalloprotein, which contains four atoms of Mo per molecule of protein, is found…

A: The given values in the question are:Number of Molybdenum (Mo) atoms per molecule of protein = 4Mass…

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: A 0.549 g sample of manganese metal reacts with excess sulfur to give 1.191 g of manganese sulfide.…

A: Given that -  Mass of manganese sample = 0.549 g  And, mass of manganese sulfide = 1.191 g    Now,…

Q: A 16.14 gram sample of chromium is heated in the presence of excess sulfur. A metal sulfide is…

A: Mass of chromium sample is 16.14 g Mass of metal sulfide is 26.09 g Calculate the moles of chromium,…

Q: a compound contains only hydrogen, carbon, and oxygen. combustion of 10.68mg of the compound…

A: The combustion reaction of given compound and its masses are shown below,

Q: Calculate the mass percent of carbon in glucose (C6H12O6).

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st…

Q: Determine the empirical formula for a compound that is 76.6%76.6% C, 6.4%6.4% H, and 17.0%17.0% O by…

A: Given that the mass percent of C, H and O is 76.6%, 6.4% and 17.0% respectively. Number of moles 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: 81. A compound having an approximate molar mass of 165–170 g has the following percentage…

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Q: The mass percentages of H and O in a compound used for bleaching are 5.9% H and 94.1% O. The molar…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: carbon-hydrogen-nitrogen compound when burned completely, a 0.312 g sample yields 0.458 g CO2 and…

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

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Q: 42.87%; hydrogen, 3.598%; oxygen, 28.55%; and nitrogen, 25.00%. Determine the empirical and…

A: Molecular mass of subtance = 167.5g   percentage composition calculation :  167.5 g   =  100%  x…