Q. You are asked to prepare 500 mL of a 0.2 M solution of sodium citrate dihydrate (molecular weight: 294.1 g/mol). How much would you weigh in grams?

Q. A student in a lab prepares 12% w/v sodium phosphate solution. The molecular weight of sodium phosphate is 164 g/mol. Based on this information, calculate the molarity of the prepared solution.

Please please answer both! explain step by step clearly