Question

1.6 grams of NaOH is dissolved in 100 mili-litres of water to make a solution. What is the
molarity of this solution?

Answer 1

Answer:

The molecular weight of NaOH is 40 g/mol.

The number of moles of NaOH is 1.6/40=0.04 moles

100 ml water corresponds to 0.100 L.

The molarity of the solution = 0.04/0.100

                                              = 0.4                                                

Explanation: