Question

O 500 m) of 0.02 molar solution
molar solution contains
how
.
many
moles of the solute
man​

Answer 1

Answer:

Molarity, M= number of moles/volume of solution

M=

V

n

Number of moles, n= mass/molar mass

Molar mass of NaCl=58.5 g/mol

Mass = 5.85g

n=5.85/58.5=0.1 mol

Volume, V=500 mL=0.5 L

∴M=0.1/0.5=0.2mol/L

Hence, option C is correct.