Question

7. Ethanol has a density of 0.789 g/cm³. What is the mass of 155 cm³ of this
substance?

Answer 1

`\huge{ \boxed{122.30 \: g}}`

Step-by-step explanation:

The mass of the substance can be found by using the formula;

mass = density × volume

From the question;

density = 0.789 g/cm³

volume = 155 cm³

`\therefore \: mass = 0.789 * 155 \\ = 122.30 \: g`