Question

Calculate the mass percentage of aspirin (C9H8O4) in

Answer 1

6.5g of C9H8O4is dissolved in 450 g of CH3CN.

Then,total mass of the solution = (6.5 + 450) g

= 456.5 g

Therefore, mass percentage ofC9H8O4

=6.5/456.5×100%

=1.424%

Answer 2

Complete question:

Calculate the mass percentage of aspirin In acetonitrile when 6.5 gm aspirin is dissolved in 450gm of CH3CN

Answer ;-

Mass of aspirin = 6.5 gram

Mass of CH3CN = 450 gram

Mass % = 6.5/456.5 x 100 = 1.424%