What is the % m/v of a 200 mL aqueous solution containing 30 g of sodium chloride?

To calculate the mass/volume percent (% m/v) of a solution, you need to divide the mass of the solute by the volume of the solution and multiply by 100. Given that the solution contains 30 grams of sodium chloride (NaCl) in a 200 mL aqueous solution, we can calculate the % m/v as follows: % m/v = (mass of solute / volume of solution) x 100 % m/v = (30 g / 200 mL) x 100 % m/v = 15% Therefore, the % m/v of the 200 mL aqueous solution containing 30 g of sodium chloride is 15%.