Question

5.Calculate the molarity of pure water ( density of water = 1 g mL-1 ).

Answer 1

Answer:

Molarity is no of moles per litre.

1g/ml density means that

1L (=1000 ml) weighs 1000g.

So one litre of water has 55.55 mol water,

and so molarity if water is 55.55 molar.

Answer 2

Answer:

Molarity=wt/G. M. W ×v(l)

M=18/18 ×1/18

M=1/18

M=wt/G.M.W ×d/m