Questions: Why was the hydrate heated twice in the experiment? I. cueight of Copper 8ulfate to See 2. What is the true percentage of water in BaCl, 2H,0? 18.02 x2- 3.O Write a balanced equation for the dehydration of MgSO 7H,O. 3. Why is BaCl, 2H,O not written as BaCI,H,O2? 4. 5. A 1.547 g sample of CuSO, xH,O is heated to drive off the water leaving behind 0.989 g of anhydrous CuSO What is the value of x for this hydrate?

Questions: Why was the hydrate heated twice in the experiment? I. cueight of Copper 8ulfate to See 2. What is the true percentage of water in BaCl, 2H,0? 18.02 x2- 3.O Write a balanced equation for the dehydration of MgSO 7H,O. 3. Why is BaCl, 2H,O not written as BaCI,H,O2? 4. 5. A 1.547 g sample of CuSO, xH,O is heated to drive off the water leaving behind 0.989 g of anhydrous CuSO What is the value of x for this hydrate?

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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Question number 5
Please help with number four. We think the answer is B.This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl
» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…
HO + Drawing N = Q
Question 12
Number 9
Estimated volume of crucible 25.0 mL measured volume of crucible 23.0 mL percent error of estimate (% error=accepted value-experimental value/accepted value ) volume in (use measured volume of crucibleto answer for the ): kL cL