Question

A piece of titanium metal has a mass of 67.5g and a volume of 15 cm3. what is the density of titanium?

Answer 1

@Miracrown

Answer 2

Are you familiar with density?

Answer 3

somewhat, I just don't know how to calculate it.

Answer 4

Density is measured in mass per volume and the formula for density is:

\[D =\frac{ Mass }{ Volume }\]

Answer 5

So in this question, what's the volume for mass?

Answer 6

so just divide the numbers?

Answer 7

That's right. Our mass is 67.5g and our volume is 16cm^3:

\[D= \frac{ 67.5g }{ 15cm ^{3} } = ?\]

So when we calculate this out, what does the density come out to?

Answer 8

sorry i meant our volume is 15cm^3 *
typo.

Answer 9

0.02?

Answer 10

nope, how'd you got 0.02?

Answer 11

67.5/15^3 calculator.

Answer 12

No, 15^3 is 15 cm cubed... so you weren't supposed to calculate the cubed bit.

Calculate this:

\[\frac{ 67.5 }{ 15 } = ?\]

Answer 13

oh ok.4.5?

Answer 14

yes, that's correct... and the units would be?

Answer 15

cm3

Answer 16

You're close; cm^3 is right but there is also grams.

Remember we divided a mass by a volume so out units must be the units of mass divided by the volume.So our units of mass here are grams on the top and then our units of volume are cm^3 so this will be our units on the bottom. Its going to look like this...

Density = 4.5g/cm^3

Answer 17

god you are smart!!!!

Answer 18

could you help me with three more?

Answer 19

I'm busy right now, but maybe a bit later.
If your questions are related to the one we just did now then you can always refer to it and use it as a example to help you out with the rest.

Answer 20

ok thank you.

Answer 21

No worries. ;)