Question

how to calculate how many moles are in 5 grams of NaOH​

Answer 1

Answer:

$0.125 \: mole$

Explanation:

Molecular Mass of NaOH -

23 + 16 + 1

40

$mole \: (n) = \frac{mass}{gram \: molecular \: mass} \\ \frac{5}{40} \\ \\ \frac{1}{8} \\ \\ 0.125$

Answer 2

Na=23U
O=16U
H=1U
1mol of NaOH=40gm
X=5gm
X=(5x1)/40
X=1/8
X=0.125mol
Therefore 5gm of NaOH is equal to 0.125mol