Question

you need to make 250 mL of a 25% soduim Gloopate solution. you have Na Gloopate.10H2O which has a mw of 100.00. how many grams of Na Gloopae.10H2O must you weigh out?

Answer 1

25% solution is that in which 25 g of solute is present in 100 ml of solution.

As, 100 ml of solution = 25 g of sodium gloopate

250 ml of solution = (25 g)/(100 ml)*250 ml = 62.50 g

Hence, sodium gloopate required to be weighed = 62.50 g (answer)