Question

What is the mass, in grams, of 0.00948\,\text {mol}0.00948mol0, point, 00948, start text, m, o, l, end text of phosphoric acid?

Answer 1

Answer:

m = 0.929 grams

Explanation:

We have,

Number of moles of phosphoric acid is 0.00948

It is required to find the mass of phosphoric acid.

The number of moles in a given molecule is given by :

$n=\dfrac{m}{M}$

m is mass and M is molecular mass

The molecular formula of phosphoric acid is $H_3PO_4$. Its molecular mass is :

$M=3\times 1+31+16\times 4=98\ g/mol$

So,

$m=n\times M\\\\m=0.00948\ mol\times 98\ g/mol\\\\m=0.929\ g$

So, the mass of phosphoric acid is 0.929 grams.