Question

calculate the mass percentage of aspirin (c9h8o4) in acetonitrile (ch3cn) when 6.5 g of aspirin is dissolved in 450 g of acetonitrile.

Answer 1

1.4%

Step-by-step explanation:

The total mass of the final solution is (6.5g + 450g) = 456.5 grams

The percentage of aspirin would be:

(6.5g)/(456.5g) = 0.01424 or 1.4 % to 2 sig figs