Question

how many moles are present in 4 gram of sodium hydroxide

Answer 1

.1 mole..............................

Answer 2

Given,

4 gram of NaOH (Sodium Hydroxide)

To find,

Moles of NaOH

Solution,

We may answer this numerical problem by following the steps below.

We know that;

The molecular mass of Na = 23 g/mole

The molecular mass of O = 16 g/mole

The molecular mass of H = 1 g/mole

Thus,

Mass of NaOH = 23+16+1

                        = 40 g/mole

We know that,

By dividing the given weight by the compound's mass, we may compute the moles of a particular chemical.

Thus, Moles = $\frac{4}{40}$

                     = 0.1

As a result, we figured out that NaOH has a mole of 0.1.