1. A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 2.0 ✕ 10-11 for Mg(OH)2 and Ksp = 5.3 ✕ 10-26 for Sn(OH)2. a) What [Sn2+] is required to start the precipitation of Sn(OH)2? b) What [Sn2+] is required so that the [Mg2+] in solution will be 0.12 M?
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1. A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 2.0 ✕ 10-11 for Mg(OH)2 and Ksp = 5.3 ✕ 10-26 for Sn(OH)2.
a) What [Sn2+] is required to start the precipitation of Sn(OH)2?
b) What [Sn2+] is required so that the [Mg2+] in solution will be 0.12 M?
2. Solid NaI is added to a solution which is 0.025 M in TlNO3 and 0.015 M in AgNO3. Assume the volume remains constant. Ksp = 8.9 ✕ 10-8 for TlI and Ksp = 1.0 ✕ 10-16 for AgI.
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