Answered: A sample of solid Ca(OH)2 was stirred…

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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A sample of solid Ca(OH)₂ was stirred in water at a certain temperature until the solution contained as much dissolved Ca(OH)₂ as it could hold. A 450-mL sample of this solution was withdrawn and titrated with 0.315 M HI. It required 35.5 mL of the acid solution for neutralization.

What is the solubility of Ca(OH)₂ in water, at the experimental temperature, in grams of Ca(OH)₂ per liter of solution?

Expert Solution

Step 1

Given,

Volume of $C a {(O H)}_{2}$ , V₁ $= 450 m L = 450 \times 10^{- 3} L = 0.450 L$

Molarity of $C a {(O H)}_{2}$ M₁= to find

Valency factor of $C a {(O H)}_{2}$ , $V_{f 1}$ = 2 (i.e number of OH^- given by $C a {(O H)}_{2}$ ).

and Molarity of HI , M₂ = $0.315 M$

Volume of HI V₂ = $35.5 m L = 0.0355 L$

Valency factor of HI, $V_{f_{2}}$ = 1 ( i.e number of H⁺ given by HI)

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