frqs_from_equilibrium_test

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University of Texas *

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PHYSICAL C

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Chemistry

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Nov 24, 2024

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docx

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FRQs from Equilibrium Test 1. Justify your answer with balanced equations and calculations that explain how you solved the problem. A. What is the molar solubility of Co(OH) 3 in a solution that is 0.010 M in Co(NO 3 ) 3 ? Ksp of Co(OH) 3 = 2.3 x 10 -12 B. How many grams of Co(OH) 3 will dissolve in 250.0 mL of the 0.010 M Co(NO 3 ) 3 solution? 2. Justify your answer with balanced equations and calculations that explain how you solved the problem. A. What is the molar solubility of PbBr 2 in a solution that is 0.25 M in LiBr? Ksp of PbBr 2 = 6.9 x 10 -5 B. How many grams of PbBr 2 will dissolve in 500.0 mL of 0.25 M LiBr solution? 3. If 250.0 mL of a 1.0 x 10 -3 M solution of Bi(NO 3 ) 3 is mixed with 350.0 mL of 1.5 x 10 -3 M Na 2 S, will a precipitate form? Ksp of Bi 2 S 3 is equal to 4.9 x 10 -17 .
Justify your answer with balanced equations and calculations that explain how you solved the problem.
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