Question

Calculate the mass percent solute in a solution of 12.6 grams of NaNO3 in 450 grams of water.

Answer 1

`\%\ percent\ of\ NaNO_3=2.72\ \%`

Step-by-step explanation:

Percent percent is percentage by the mass of solute present in the solution.

Given , Mass of
`NaNO_3` = 12.6 g

Mass of water = 450 g

Total mass of the solution = Mass of
`NaNO_3` + Mass of water = 12.6 g + 450 g = 462.6 g

`\%\ percent\ of\ NaNO_3=(Mass_(NaNO_3))/(Total\ mass)* 100`

`\%\ percent\ of\ NaNO_3=(12.6)/(462.6)* 100`

`\%\ percent\ of\ NaNO_3=(1260)/(462.6)`

`\%\ percent\ of\ NaNO_3=2.72\ \%`