(A) What is the mass of 150 mL of a liquid with a density

of 1.4 g/mL

150 * 1.4 grams or 210 grams

To find the mass of a liquid, you can use the formula:

Mass = Density x Volume

In this case, the density of the liquid is given as 1.4 g/mL, and the volume is 150 mL. Thus, we can substitute these values into the formula:

Mass = 1.4 g/mL x 150 mL

Calculating this multiplication, we get:

Mass = 210 g

Therefore, the mass of 150 mL of the liquid with a density of 1.4 g/mL is 210 grams.