Question

Calculate the number of moles in 4g Naoh

Answer 1

hello

Your answer is ..

Number of moles=Mass/Molar mass

answer with units of moles.....

i.e. Number of moles=4⋅g/40⋅g⋅mol−1=0.1⋅mol.

Answer 2

Given:

Weight of NaOH= 4g

To find:

Number of moles

Solution:

We can find the solution by following the given steps-

We know that the number of moles can be calculated by dividing the weight of the substance and its molar mass.

The molar mass of NaOH= 39.99g/mol

The number of moles= Weight of NaOH/Molar mass of NaOH

=4/39.99

= 0.10 mol

Therefore, the number of moles in 4g of NaOH is 0.1 mol