Question

find the no.of moles of benzoic acid that contain in2gm of the pure acid​

Answer 1

Explanation:

benzoic acid is C6H5COOH

Therefore molecular mass of benzoic acid is

=12*6+1*5+12+16+16+1

=72g

so...... 72g of benzoic acid is present in 1 mole of pure acid.

.......... 2 g of benzoic acid is present in 2/72

=1/36

= 0.0277 moles.