5. Determine the empirical and molecular formula for the following compounds. a. A pure compound is found to have the following percent composition: 40.44% C, 7.92% H, 35.92% O, and 15.72% N. Determine the empirical formula of this compound. b. A certain compound is 5.9% hydrogen and 94.1% oxygen and has a molar mass of 34.0g/mole. Determine the empirical and molecular formula. c. A sample of a compound is found to contain 23.35g of C, 1.05g of H, 14.78g of N and 33.83g of O. The molar mass of the compound is 213.0g/mole. Determine the empirical and molecular formula of this compound. d. A certain red dye is found to be 59.988% C, 4.146% H, 12.345% N, 9.420% S, and 14.101% O. The molar mass of the dye is 680.0g/mole. Determine the empirical and molecular formula of this compound.
5. Determine the empirical and molecular formula for the following compounds. a. A pure compound is found to have the following percent composition: 40.44% C, 7.92% H, 35.92% O, and 15.72% N. Determine the empirical formula of this compound. b. A certain compound is 5.9% hydrogen and 94.1% oxygen and has a molar mass of 34.0g/mole. Determine the empirical and molecular formula. c. A sample of a compound is found to contain 23.35g of C, 1.05g of H, 14.78g of N and 33.83g of O. The molar mass of the compound is 213.0g/mole. Determine the empirical and molecular formula of this compound. d. A certain red dye is found to be 59.988% C, 4.146% H, 12.345% N, 9.420% S, and 14.101% O. The molar mass of the dye is 680.0g/mole. Determine the empirical and molecular formula of this compound.
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter9: Chemical Quantities
Section: Chapter Questions
Problem 7CR
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5. Determine the empirical and molecular formula for the following compounds.
a. A pure compound is found to have the following percent composition: 40.44% C, 7.92% H, 35.92% O, and 15.72% N. Determine the empirical formula of this compound.
b. A certain compound is 5.9% hydrogen and 94.1% oxygen and has a molar mass of 34.0g/mole. Determine the empirical and molecular formula.
c. A sample of a compound is found to contain 23.35g of C, 1.05g of H, 14.78g of N and 33.83g of O. The molar mass of the compound is 213.0g/mole. Determine the empirical and molecular formula of this compound.
d. A certain red dye is found to be 59.988% C, 4.146% H, 12.345% N, 9.420% S, and 14.101% O. The molar mass of the dye is 680.0g/mole. Determine the empirical and molecular formula of this compound.
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