Question

Find the number of moles present in80grams of NAOH is by​

Answer 1

Explanation:

Molecular mass of NaOH=23+16+1=40g

In 40g we have 1 mole

In 1 g we have 1/40 mole

In 80 g, we have 80/40mole=2 mole

The number of moles present in80grams of NAOH is 2 moles

Answer 2

Explanation:

Number of moles = Given Mass

                                  _________

                                  Molar Mass

Moles = 80/40

=2 moles of NaOH is present