Question

calculate the gram molecule in 40 gram of phosphoric acid?​

Answer 1

Answer:

=98g/mol

1 mol = 98g

40g= 1/98*40 moles

=0.4081 moles

Answer 2

Answer:

The number of gram molecules in 40 grams of phosphoric acid will be equal to 0.4081 gram molecule.

Explanation:

The quantity of a compound whose mass in grams will be equal to molecular mass of that compound is known as gram molecule.

Molecular mass of the phosphoric acid $(H_{3}PO_{4})$ is $=98gmol^{-1}$

$98g$ of phosphoric acid contains $=1$ gram molecule

$40grams$ of  phosphoric acid contain $=\frac{40}{98}=0.4081$ gram molecule