what is the mass of a 3.00 cm3 piece of gold having a density of 19.3 g/cm3

Answer 1

Answer 2

Hello!

To answer this question, we need to take a look at the formula for density, which is:

Density = Mass ÷ Volume

Next, let's identify which pieces of information we get from the question.

The piece of gold has a density of 19.3 g/cm³.

It also has a volume of 3.00 cm³. Although the question does not explicitly state this, we know this because volume is measured in cubic centimeters.

Now, let's try to alter the formula for density, and find what mass is equal to in terms of density and volume.

Density = Mass ÷ Volume

Treating this like a regular equation, we can simply multiply both sides by volume, and that will give us what mass is equal to:

Density * Volume = Mass

Great, now let's plug our known values into this equation for mass, and find our answer!

19.3 g/cm³ * 3.00 cm³ = Mass

Mass = 57.9 g

Perfect, so we now know that our mass is equal to 57.9 grams!

While I wrote the formula out to make it a little bit easier to understand the variables, please note that the formula on reference sheets, tests, and other material will look like this:

When showing work, please write the formula as such!

I hope this was helpful; feel free to message me for further clarification or more questions!