Answer
The glucose concentration is equal to 7.41 % by mass
Work Step by Step
- The percent by mass formula is:
$\% by \space mass = \frac{mass_{solute}}{mass_{solute} + mass_{solvent}} \times 100\%$
$= \frac{mass_{glucose}}{mass_{glucose} + mass_{water}} \times 100\%$
$= \frac{28.4 \space g}{28.4 \space g + 355 \space g } \times 100\% = 7.41 \% \space by \space mass$
