Question

156 g sample of steel has a volume of 20.0 mL. What is the density of the steel sample? a g/cm3 Your answer should be rounded to three significant figures. Do not include nits in your answer.​

Answer 1

Answer:

The answer is

7.80

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume}$

From the question

mass of metal = 156 g

Since 1 mL = 1 cm³

20 mL = 20 cm³

volume = 20 cm³

It's density is

$density = \frac{156}{20} = \frac{39}{5}$

We have the final answer as

7.80 g/cm³ to 3 significant figures

Hope this helps you

Answer 2

Answer:

7.8g/cm³

Explanation:

Formula is [ d = m/v ] where m = mass and v = volume.

We are given both "m" and "v" so we can solve for the density.

d = 156/20

d = 7.8

Best of Luck!