Question

What is the percent by mass of solute if 14.15 g of `NaI` is mixed with 75.55 g of water?

Answer 1

15.77 %

Explanation:

Weight of solute and solvent
`14.15+75.55=89.70`

Since 89.70 gm of total weight containing 14.15 gm solute
Hence what is percent of solute if total weight is 100 gm

`100*14.15/89.70 = 15.77`

Hence answer is 15.77 %