QuestionWhen 30.0 g of glycine $\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NO}_{2}\right)$ are dissolved in 1000 g of a certain mystery liquid $X$, the freezing point of the solution is $6.80{ }^{\circ} \mathrm{C}$ less than the freezing point of pure $X$. Calculate the mass of potassium bromide that must be dissolved in the same mass of $X$ to produce the same depression in freezing point. The van't Hoff factor $i=1.78$ for potassium bromide in $X$. Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits. $\square$ $\square \times 10$ $\square$ - $\square$