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4. How many grams are there in 0.4 mole of So,? (a) 35. 6

4. How many grams are there in 0.4 mole of So,? (a) 35. 6

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter21: The Chemistry Of The Main Group Elements
Section: Chapter Questions
Problem 86GQ: In 1774, C. Scheele obtained a gas by reacting pyrolusite (MnO2) with sulfuric acid. The gas, which...
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13 14 4 3s7 (a) 1 (b) S (a) 35 (a) 13 3. In the periodic table, if axygen vere aasigned an atomic weight of one, what would be the atomic weight of bromine? (al 2 (b) 3 (c) 4 4. HOw many grams are there in 0.4 mole of so,? (a) s (a) 25.6 g (b) 160 g 5. How many moles are there in 16.4 g of Ca(NO,),? (c) 19.2 g (d) 120 g (a) 0.1 mole (b) 10 moles (c) 5 moles (d) 1 mole 6. An isotope that has 35 p, 35 e and 46 n is: 81 (a) a5Pd 81 46 (b) Br 46, (a) 16b 35. 7. The number of electrons in the outermost energy level of chlorine is: (a) 7 (b) 6 (c) 5 (d) 4 8. Isotopes of the same element always have: (a) the same number of neutrons (b) the same atomic weight (c) different numbers of protons. (a) the same atomic number 9. The carbon-carbon bond in a molecule of ethylene, C,H is aln: (b) double bond (c) triple bond (a) single bond (d) ionic bond 10. Which of the following compounds is the least polar? (c) HBr (d) HI (b) HC1 11. The formula of copper (I) sulfate is: (b) Cu(so2 (a) HF (a) cuso3 (c) Cu2s04 (a) Cuso4 The name of the compound Fe(C H,0,)3 is: (b) iron(III) acetate 12. ntate (d) iron(I) carbonate
Transcribed Image Text:13 14 4 3s7 (a) 1 (b) S (a) 35 (a) 13 3. In the periodic table, if axygen vere aasigned an atomic weight of one, what would be the atomic weight of bromine? (al 2 (b) 3 (c) 4 4. HOw many grams are there in 0.4 mole of so,? (a) s (a) 25.6 g (b) 160 g 5. How many moles are there in 16.4 g of Ca(NO,),? (c) 19.2 g (d) 120 g (a) 0.1 mole (b) 10 moles (c) 5 moles (d) 1 mole 6. An isotope that has 35 p, 35 e and 46 n is: 81 (a) a5Pd 81 46 (b) Br 46, (a) 16b 35. 7. The number of electrons in the outermost energy level of chlorine is: (a) 7 (b) 6 (c) 5 (d) 4 8. Isotopes of the same element always have: (a) the same number of neutrons (b) the same atomic weight (c) different numbers of protons. (a) the same atomic number 9. The carbon-carbon bond in a molecule of ethylene, C,H is aln: (b) double bond (c) triple bond (a) single bond (d) ionic bond 10. Which of the following compounds is the least polar? (c) HBr (d) HI (b) HC1 11. The formula of copper (I) sulfate is: (b) Cu(so2 (a) HF (a) cuso3 (c) Cu2s04 (a) Cuso4 The name of the compound Fe(C H,0,)3 is: (b) iron(III) acetate 12. ntate (d) iron(I) carbonate
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