Given data:
- mass % = 3.5%
- mass of solution = 50g
- mass of solute (sodium bicarbonate) = ?
In order to find the mass of solute we must use the next formula
[tex]mass\text{ \%}=\frac{mass\text{ of solute}}{mass\text{ of solution }}\cdot100\text{ \%}[/tex]Since we need the mass of solute, we must solve the equation for mas of solute
[tex]\text{mass of solute}=\frac{mass\text{ \%}\cdot mass\text{ of solution}}{100\text{ \%}}[/tex]Now, we must replace the values in the equation
[tex]\text{mass of solute }=\frac{3.5\text{ \%}\cdot50g}{100\text{ \%}}[/tex]Finally, we must simplify
[tex]\text{mass of solute}=1.75g[/tex]ANSWER:
The mass of the sodium bicarbonate is 1.75 g
