Chapter 17, Problem 64d
For each of the following slightly soluble salts, write the net ionic equation, if any, for reaction with a strong acid: (d) Hg2C2O4.
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Calculate the molar solubility of Ni(OH)2 when buffered at pH (a) 8.0.
Calculate the molar solubility of Ni(OH)2 when buffered at pH (b) 10.0.
Calculate the molar solubility of Ni(OH)2 when buffered at pH (c) 12.0.
From the value of Kf listed in Table 17.1, calculate the concentration of Ni2 +1aq2 and Ni1NH326 2+ that are present at equilibrium after dissolving 1.25 g NiCl2 in 100.0 mL of 0.20 M NH31aq2.
Calculate the minimum pH needed to precipitate Mn1OH22 so completely that the concentration of Mn2 +1aq2 is less than 1 mg per liter [1 part per billion (ppb)].
Suppose that a 10-mL sample of a solution is to be tested for I- ion by addition of 1 drop (0.2 mL) of 0.10 M Pb1NO322. What is the minimum number of grams of I- that must be present for PbI21s2 to form?