Question

The molar mass of lif is 25.94 g/mol. how many moles of lif are present in 10.37 g?

Answer 1

Number of moles is (actual mass)/(molar mass)
So there are 10.37/25.94 mols
So there are 0.3998 (or 0.4) moles

Answer 2

Answer : The number of moles of LiF are, 0.399 mole

Explanation : Given,

Mass of LiF = 10.37 g

Molar mass of LiF = 25.94 g/mole

Now we have to calculate the moles of LiF.

$\text{Moles of LiF}=\frac{\text{Mass of LiF}}{\text{Molar mass of LiF}}$

Now put all the given values in this formula, we get the number of moles of LiF.

$\text{Moles of LiF}=\frac{10.37g}{25.94g/mole}=0.399mole$

Therefore, the number of moles of LiF are, 0.399 mole