To determine the number of moles of the water of crystallization (n) of a hydrated salt, a student took a sample of 5.94 g of a Cobalt(II)chloride hydrate. The student heated the sample over a burner until constant mass. After cooling, he found that the mass of the remaining dehydrated salt was 4.65 g. i. Determine the mass of water lost by the sample. ii. Determine the number of moles of anhydrous Cobalt(II)chloride and water. iii. Calculate the number of moles of water of crystallization(n). iv. Write the molecular formula for the hydrated salt. v. How can the student make sure that all of the water of hydration has been removed?
To determine the number of moles of the water of crystallization (n) of a hydrated salt, a student took a sample of 5.94 g of a Cobalt(II)chloride hydrate. The student heated the sample over a burner until constant mass. After cooling, he found that the mass of the remaining dehydrated salt was 4.65 g. i. Determine the mass of water lost by the sample. ii. Determine the number of moles of anhydrous Cobalt(II)chloride and water. iii. Calculate the number of moles of water of crystallization(n). iv. Write the molecular formula for the hydrated salt. v. How can the student make sure that all of the water of hydration has been removed?
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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I need solutions of W iii and iv and v. please
b.To determine the number of moles of the water of crystallization (n) of a hydrated salt, a
student took a sample of 5.94 g of a Cobalt(II)chloride hydrate. The student heated the sample
over a burner until constant mass. After cooling, he found that the mass of the remaining
dehydrated salt was 4.65 g.
i. Determine the mass of water lost by the sample.
ii. Determine the number of moles of anhydrous Cobalt(II)chloride and water.
iii. Calculate the number of moles of water of crystallization(n).
iv. Write the molecular formula for the hydrated salt.
v. How can the student make sure that all of the water of hydration has been removed?
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