Question

the concentration of water molecule in pure water at 298K is

Answer 1

yes it is pure wqtrr

Answer 2

Answer:

The concentration of water molecule in pure water at 298 K is 55.3888 M.

Explanation:

Concentration is defined as number of moles present in a 1 liter of the solution.

Concentration or molarity :

$[C]=M=\frac{\text{Mass of ompound}}{\text{Molar mass of compound}\times \text{Volume of the solution (L)}}$

Density of water at 298 K = $997 kg/m^3=\frac{997,000 g}{1000 L}=997 g/L$

Suppose the volume of the water at 298 K be = 100 mL = 0.1 L

Mass of water in 0.1 L :

$Mass =Density\times Volume=997 g/L\times 0.1 L=99.7 g$

Concentration of water:

$M=\frac{99.7 g}{18 g/mol\times 0.1 L}=55.3888 mol/L=55.3888 M$

The concentration of water molecule in pure water at 298 K is 55.3888 M.