Question

A solution contains 0.4 moles of salt in 200cm³ of water. What is the concentration of this salt solution?

Answer 1

Explanation:2.00mol/dm3

Step-by-step explanation:

Molar concentration = number of mole /volume in dm3

But volume is given in cm3

Therefore will convert to dm3

1dm3 _______1000cm3

Xdm3 ______ 200cm3

X = 0.2dm3//

Hence molar concentration = number of mole /volume in dm3

Concentration = 0.4mol /0.2dm3

= 2mol/dm3///