Question

The teacher instructed three students 'A' , 'B' and 'C' respectively to prepare a 50 % (mass by volume) solution of sodium hydroxide (NaOH). 'A dissolved 50 g of of NaOH in 100 ml of water , 'B' dissolved 50 g of NaOH in 100 ml of water while 'C' dissolved 50 g of NaOH in water to make 100 ml of solution . Which one of them has made the desired solution and why?​

Answer 1

Answer:

C

Explanation:

because all the proportions in solutions are solute/solution. so the total amount of the solution created by C is 100g, which makes the mass by volume proportion 50%.

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