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What is [OH–] for a solution at 25°C that has [H3O+] = 8.23 × 10–2 M?

What is the value of Kb for the formate anion, HCOO– ? Ka (HCOOH) = 2.1 × 10–4

The pH of a Ba(OH)2 solution is 10.00. What is the H+ ion concentration of this solution?

Which is more soluble in an acidic solution than in pure water?

The stronger the acid, the weaker its conjugate base.

What is the ion product expression for magnesium fluoride, MgF2?

What is the effect on equilibrium when sodium acetate is added to a solution of acetic acid? CH3COOH(aq) H+(aq) + CH3COO–(aq)

NH3 is a typical Lewis base.

A 10.0-mL sample of 0.75 M CH3CH2COOH is titrated with 0.30 M NaOH. What is the pH of the solution after 22.0 mL of NaOH have been added to the acid? [Ka(CH3CH2COOH) = 1.3 × 10–5]

When a weak acid is titrated with a weak base, the pH at the equivalence point