Question
Asked Nov 9, 2019
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Calculate the solubility at 25°C of Zn(OH)2 in pure water and in a 

0.0080M ZnSO4 solution. You'll find Ksp data in the ALEKS Data tab.

Round both of your answers to 2 significant digits.

ksp of zn(OH)2 =3.0×10−17

solubility in pure water:                                    gL  
solubility in 0.0080 M ZnSO4 solution:             gL  
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Expert Answer

Step 1

Given:

Concentration of ZnSO4 = 0.0080M.

Ksp of Zn(OH)2 =3.0×10−17

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Zn(OH2 Zn2 (aq) 20H (aq)

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Step 2

Calculation for molar solubility of Zn(OH)2 in pure water:

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Ksp Zn+2[H]2 Ksp s x (2s) Ksp = 4s3 3.0 x 10-17 = s3 4 3 7.5 x 10-18 1.96 x 106 mol/L s

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Step 3

Calculation for solubility of Zn(OH...

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solubility molar solubity X molar mass solubility 1.96 x 10 mol/L x 99.424 g/mol solubility 1.95 x 10-4 g/L

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