How would you prepare 200 ml of a 5.0wt% aqueous solution ofsodium hydroxide? as

Question

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

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