Answer:
[tex]\%\ percent\ of\ NaNO_3=2.72\ \%[/tex]
Explanation:
Percent percent is percentage by the mass of solute present in the solution.
Given , Mass of [tex]NaNO_3[/tex] = 12.6 g
Mass of water = 450 g
Total mass of the solution = Mass of [tex]NaNO_3[/tex] + Mass of water = 12.6 g + 450 g = 462.6 g
[tex]\%\ percent\ of\ NaNO_3=\frac{Mass_{NaNO_3}}{Total\ mass}\times 100[/tex]
[tex]\%\ percent\ of\ NaNO_3=\frac{12.6}{462.6}\times 100[/tex]
[tex]\%\ percent\ of\ NaNO_3=\frac{1260}{462.6}[/tex]
[tex]\%\ percent\ of\ NaNO_3=2.72\ \%[/tex]
