Which of the following salts has the highest molar solubility in pure water?   Salt Ksp 1 Ni(OH)2 2.0 x 10–15 2 Mn(OH)2 2.0 x 10–13 3 CaCO3   3.8 x 10–9 4 Fe(OH)2 8 x10–16 5 PbI2 6.5 x 10–9

Calculate the pH of the solution obtained by mixing 55.00 mL of 0.0954M HCl and 47.00 mL of 0.1095M NaOH.

The following is a solubility product expression for Ca3(PO4)2: Ksp=

Ka for HF is 6.8 x10–4.  Calculate Kb for F-?

Which of the following pairs of substances will NOT make aqueous buffer solutions (consider the products of acid-base reactions to get a correct answer)? KF, HF KOH, HF KOH, HBr NaClO, HNO3 HC2H3O2, NaOH  NaOH, HNO3 KCl, HCl

Jalen is concerned that the content of his presentation will not be credible. To counteract this, Jalen should:

Calculate ΔSo298 for the following change 2HCl(g) + Pb(s)

Use the standard reduction potentials given below: Cu2+ + 2e- → Cu;  Eo red = 0.337 VMg2+ + 2e- → Mg;  Eo red = -2.37 VCalculate value of the standard cell potential for an electrochemical cell with the following reaction. Cu(s) + Mg2+(aq) → Cu2+ (aq) + Mg(s)

Balance the following redox reaction which happens in an acidic solution. What’s the coefficient of Fe3+? MnO4- + Fe2+ → Mn2+ + Fe3+

If the solubility of Ca(OH)2 in pure water is 1.9 g/L at a certain temperature, calculate its Ksp at that temperature.