Question

How many moles of NaOH
would you have in a
sample that weighed 10g?

Answer 1

Answer: There are 0.25 moles of NaOH in a sample that weighed 10g.

Step-by-step explanation:

Given: Mass of NaOH = 10 g

Molar mass of NaOH is 40 g/mol.

Number of moles is the mass of substance divided by its molar mass.

Therefore, moles of NaOH are calculated as follows.

`No. of moles = (mass)/(molarmass)\\= (10g)/(40 g/mol)\\= 0.25 mol`

Thus, we can conclude that there are 0.25 moles of NaOH in a sample that weighed 10g.