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(Show all calculations where appropriate.) 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt was found to be 4.501 g. Use these data to calculate: a) The mass of water in the hydrated salt. b) The percent by mass of water in the hydrated salt. 2. If you have covered the topic of "the mole" in class, answer this question. Hint: Re-read the example in the introduction. 4.64 g of Na,SO,*xH,O were heated to yield 2.84 g of Na,SO4. What is the value of x?

(Show all calculations where appropriate.) 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt was found to be 4.501 g. Use these data to calculate: a) The mass of water in the hydrated salt. b) The percent by mass of water in the hydrated salt. 2. If you have covered the topic of "the mole" in class, answer this question. Hint: Re-read the example in the introduction. 4.64 g of Na,SO,*xH,O were heated to yield 2.84 g of Na,SO4. What is the value of x?

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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(Show all calculations where appropriate.) 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt was found to be 4.501 g. Use these data to calculate: a) The mass of water in the hydrated salt. b) The percent by mass of water in the hydrated salt. 2. If you have covered the topic of "the mole" in class, answer this question. Hint: Re-read the example in the introduction. 4.64 g of Na,SO,*xH,O were heated to yield 2.84 g of Na,SO4. What is the value of x?
Transcribed Image Text:(Show all calculations where appropriate.) 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt was found to be 4.501 g. Use these data to calculate: a) The mass of water in the hydrated salt. b) The percent by mass of water in the hydrated salt. 2. If you have covered the topic of "the mole" in class, answer this question. Hint: Re-read the example in the introduction. 4.64 g of Na,SO,*xH,O were heated to yield 2.84 g of Na,SO4. What is the value of x?
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