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22 is -o ben ealua9 l b ade A compound. lomy

22 is -o ben ealua9 l b ade A compound. lomy

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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22 6. compound. lomso leal to i ba readin A The mass percent of water in a hydrate of MnCl, is 36.41%. What is the empirical formula of the hydrate? 7. 8.* A 4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. a gnininoo to colbe ts ano onis laubn olaodlo eaM 8 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate. 01 bbol obiboi 10. An unknown solution containing one of the salts ZnSO4, MgSO, or SrCl, gives a negative flame test but tarnishes a piece of magnesium inserted into the solution. Which salt was in the solution? 11. The heating of CuSO,· 5H,O yields several transitions as a function of temperature. The table below gives the percentage of original mass lost as a function of the approximate temperature. Use these percentages to determine the sequence of decompositions and write chemical equations for each transition. percentage of original mass lost approximate temperature (°C) 14.5 29.0 36.0 51.5 67.0 70.5 100 130 220 800 910 1020 oM boanis to o O 2015 Cengage Leaming. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
Transcribed Image Text:22 6. compound. lomso leal to i ba readin A The mass percent of water in a hydrate of MnCl, is 36.41%. What is the empirical formula of the hydrate? 7. 8.* A 4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. a gnininoo to colbe ts ano onis laubn olaodlo eaM 8 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. Determine the mass percent of water in the hydrate and the formula of the hydrate. 01 bbol obiboi 10. An unknown solution containing one of the salts ZnSO4, MgSO, or SrCl, gives a negative flame test but tarnishes a piece of magnesium inserted into the solution. Which salt was in the solution? 11. The heating of CuSO,· 5H,O yields several transitions as a function of temperature. The table below gives the percentage of original mass lost as a function of the approximate temperature. Use these percentages to determine the sequence of decompositions and write chemical equations for each transition. percentage of original mass lost approximate temperature (°C) 14.5 29.0 36.0 51.5 67.0 70.5 100 130 220 800 910 1020 oM boanis to o O 2015 Cengage Leaming. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
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