QUESTION $6$

What is the resulting molarity $($ moles per liter$)$ of a NaCl solution made by adding $23\mathrm{.}574$ grams of NaCl $($ molar mass $=58\mathrm{.}443\frac{g}{m}$ole $)$ to a $100mL$ volumetric flask and then

filling the flask to the mark with water?

QUESTION $7$

During the course of an experiment $15\mathrm{.}723$ grams of a salt solution was heated to drive off the water. $3\mathrm{.}272$ grams of the salt was retained.

What is the percentage of salt by mass of the solution. $($ Only report the number without units i$.$ e$.$ no $\%$ sign.$)$

QUESTION $8$

In another experiment it was ascertained that a salt solution was $15\mathrm{.}45\%$ salt by mass. How much salt in grams would be associated with $150\mathrm{.}297$ grams of this solution.