How would you prepare 200 ml of a 5.0wt% aqueous solution ofsodium hydroxide? assume a density of water of 1.0 g/ml; i know that there will be 95 g of solvent and 5 g of solute,but the volumes and density of water thing is confusing me reallybad. next step? How would you prepare 200 ml of a 5.0wt% aqueous solution ofsodium hydroxide? assume a density of water of 1.0 g/ml; i know that there will be 95 g of solvent and 5 g of solute,but the volumes and density of water thing is confusing me reallybad. next step?
Explanation / Answer
5.0wt% aqueous solution of sodium hydroxide means 5 g of NaOHdissolved in 100 mL of the solution Density of water ,d = 1.0 g / mL density , d = mass / Volume 1.0 = mass / Volume mass of water = Volume of water 5.0wt% aqueous solution of sodium hydroxide means 5g of NaOH dissolved in 100 mL of the solution or 10 g of NaOH dissolved in 200 mL of the solution So, 10 g of NaOH must be dissolved in 200 mL of water