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1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu E. 108.96 amu

1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu E. 108.96 amu

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter2: Chemical Compounds
Section: Chapter Questions
Problem 130QRT: The element bromine is Br2, so the mass of a Br2 molecule is the sum of the mass of its two atoms....
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1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu E. 108.96 amu 2. What is the mass of 1.21 × 1020 atoms of sulfur? (NA = 6.022 × 1023 mol-') X A. 3.88 × 1021 g B. 2.00 mg C. 32.06 g D. 6.44 mg E. 2.00 × 10 g 3. Balance the following equation for the combustion of benzene: 2 C6H6(1) + O2(g)-H2O(g) +CO2(g) ->>> A. C6H6(1)+ 902(g) 3H2O(g) + 6CO2(g) B. C6H6(1)+ 902(g) →6H2O(g) + 6CO2(g) C2C6H6(1)+1502(g) → 6H2O(g) + 12CO2(g) D. C6H6(1) + 1502(g) → 3H2O(g) + 6CO2(g) E. 2C6H6(1) + 902(g) → 6H2O(g) + 12CO2(g) 4. The scientist who determined the magnitude of the electric charge on the electron was A. Robert Millikan B. J. Burdge. C. J. J. Thomson. D. Henry Moseley. E. John Dalton. 5. Atoms X, Y, Z, and R have the following nuclear compositions: 410- 186X 183 410 412 186 412, 185 R I II III IV Which of the following are isotopes of the same element?
Transcribed Image Text:1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu E. 108.96 amu 2. What is the mass of 1.21 × 1020 atoms of sulfur? (NA = 6.022 × 1023 mol-') X A. 3.88 × 1021 g B. 2.00 mg C. 32.06 g D. 6.44 mg E. 2.00 × 10 g 3. Balance the following equation for the combustion of benzene: 2 C6H6(1) + O2(g)-H2O(g) +CO2(g) ->>> A. C6H6(1)+ 902(g) 3H2O(g) + 6CO2(g) B. C6H6(1)+ 902(g) →6H2O(g) + 6CO2(g) C2C6H6(1)+1502(g) → 6H2O(g) + 12CO2(g) D. C6H6(1) + 1502(g) → 3H2O(g) + 6CO2(g) E. 2C6H6(1) + 902(g) → 6H2O(g) + 12CO2(g) 4. The scientist who determined the magnitude of the electric charge on the electron was A. Robert Millikan B. J. Burdge. C. J. J. Thomson. D. Henry Moseley. E. John Dalton. 5. Atoms X, Y, Z, and R have the following nuclear compositions: 410- 186X 183 410 412 186 412, 185 R I II III IV Which of the following are isotopes of the same element?
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