Question

A student measures the mass of a substance as 1.7132kg and it's volume as 0.65l. What is the density substance in g/mL? Round your answer to the correct number of significant figures

Answer 1

The substance has a density of 2.636 grams per mililiter.

Step-by-step explanation:

We must remember that density (
`\rho`), measured in grams per mililiters, is the mass of the substance (
`m`), measured in grams, divided by its volume (
`V`), measured in mililiters. That is:

`\rho = (m)/(V)`

In addition, a kilogram equals 1000 grams and a liter equals 1000 mililiters. If we know that
`m = 1713.2\,g` and
`V = 650\,mL`, then:

`\rho = (1713.2\,g)/(650\,mL)`

`\rho = 2.636\,(g)/(mL)`

The substance has a density of 2.636 grams per mililiter.