What is the pH of 4% (w/v) solution of Ca(OH)2? Assume that Ca(OH)2 is 100% dissociated.© BrainMass Inc. brainmass.com August 18, 2018, 1:51 pm ad1c9bdddf
A 4% (w/v) solution means that there are 4 g of solute for every 100 mL of solution, or 4 g Ca(OH)2 ...
This solution converts the percentage composition of Ca(OH)2 solution in to g/litre. From there, we convert into moles by dividing by the molar mass. We use pOH = -log[OH-] to find the solution.