How many grams of NaOH should be dissolved in 1 litre of solution to prepare a solution with pH value12

Question

How many grams of NaOH should be dissolved in 1 litre of solution to prepare a solution  with pH value12

DrBob222 · Answer

pH = 12 pOH = 14-12 = 2 OH^- = 1 x 10^-2 Therefore, (NaOH) = 1 x 10^-2 M - 0.01 moles/L moles = grams/molar mass. You know moles and molar mass, calculate grams.