An aqueous solution is $0\mathrm{.}273mKCl.$ What is the molar concentration of the potassium

chloride, given the density of the solution is $1\mathrm{.}011{10}^3\frac{g}{L}.$

An aqueous solution is $0\mathrm{.}907M$ lead $($II$)$ nitrate. What is the molality of the lead $($II$)$

nitrate given the density of the solution is $1\mathrm{.}252\frac{g}{m}L.$

How many grams of ethylene glycol $(C{H}_{2}OHC{H}_{2}OH)$ must be added to $37\mathrm{.}8g$ of water

to give a freezing point of $-0\mathrm{.}150C?$

A solution has a vapor pressure at $30C$ of $378mmHg.$ If the $x_{\text{s}\text{o}\text{l}\text{u}\text{t}\text{e}}=0\mathrm{.}0437,$ what is the

vapor pressure of the pure solvent?