Question

9.90 g of NH4Cl is added to 19.0 g of water. Calculate the molality of the solution.

Answer 1

\[m = \frac{ (mole) of solute }{ (Kg) of solvent }\]

Answer 2

you should convert gram to Kg

Answer 3

and find mole
using...
\[mole = \frac{ mass }{ molarmass }\]

Answer 4

9.90 g of NH4Cl > is solute
water is soluton