6. 74 mg of Ca(OH)2 is all that can be dissolved in 100 mL solution at a certain temperature. Which is the value of solubility product constant for Ca(OH),? Ca(OH)2 = 74 g/mol. A) 5 x 10 3 D) 2 x 10 4 B) 1 x 10 6 C) 4 x 10" 6 E) 4 x 10 5

Question 22 of 30 Submit A 185.0 mL sample of 1.200 M Pb(NO3)2 is mixed with 123.50 mL of 1.500 M NaCI, and the PbCl, precipitate is filtered from the solution. Then 200.0 mL of 3.000 M NaBr is added to the remaining solution, and the PbBr, precipitate is also collected and dried. What is the mass (in grams) of the PbBr, precipitate, assuming the yield in each precipitation step is 100%? 1 4 6. C 7 +/- x 10 0 Tap here or pull up for additional resources LO 00

Example: Let us determine the concentrations of Ag+, CN, and Ag(CN)₂ when 10.0 mL of 2.00 M KCN is mixed with 10.0 mL of 0.0200 M of AgNO3. Kf for Ag(CN)₂¯ = 1.0 × 10²¹. := Q16.86 What is the initial concentration of Ag+ ion (in M) after mixing but before reaction or equilibrium is established? Type your numeric answer and submit Answered - Incorrect 3 attempts left Q16.87 What is the initial concentration of CN (in M) after mixing but before reaction or equilibrium is established? Cannot be empty Resubmit

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