You have to calculate the mass of a 30.0 mL liquid sample with density of 1.52 g/mL,but you have forgotten the formula.Which way of reasoning would help you in finding the correct mass?
A)If 1 mL of a liquid has the mass of 1.52 g, then 30.0 mL has the mass of ________ g.
B)If 1.52 mL of a liquid has the mass of 1 g, then 30.0 mL has the mass of ________ g.

Question

Quizplus · Accepted Answer

This is the correct choice because it uses the correct formula for density (mass/volume), and plugs in the given values to solve for the missing mass. B uses an incorrect formula with a different conversion factor, and would not give the correct answer.

You Have to Calculate the Mass of a 30