Find out the solubility of Mg(OH)2 in 0.1 M NaOH solution. [Given that the solubility product of Mg(OH)2 is 1.8×10−11]
How many millilitres of 0.1 M H2SO4 must be added to 50 mL of 0.1 M NaOH to give a solution that has a concentration of 0.05 M in H2SO4?