You are presented with a white solid and told that, because of careless labeling, it is not clear whether the substance is mercury(I) nitrate, strontium carbonate, or potassium bromide. When you transfer the solid to a beaker and add water, the solid dissolves to give a clear solution. Next, a Na2SO4(aq) solution is added and a white precipitate forms. Required:
How many grams of CH3OH must be added to water to prepare 150 mL of a solution that is 2.5 M CH3OH?