Need some help!......

[MBH_14]

ok, here is the problem:

Gold is a very soft metal that can be hammered into extremely thin sheets. If a 1.87g (d=19.32 g/cm^3) is hammered into a sheet whose area is 32 ft^2, what is the average thickness of the sheet.

My problem i am having is deciding what to convert the units to at the end so that they match. Can someone provide me some direction on how to approach that, and what the answer is that you get? Thanks a lot!

 

[stapel]

Take the grams. This is the mass. Density is "mass per volume". You need the volume. Use the density to convert the mass to a volume.

(If you're not sure how, round and think of nicer numbers. If there are, let's say, 2 grams per cubic centimeter, and you have 2 grams, how many cubic centimeters is that? If you have four grams, how many cubic centimeters? What about six grams? Ten grams? Now: What operation -- plus, minus, times, or divide -- did you use to get your answer? Use the same operation with the specific numbers here.)

Once you have the volume, you can divide out the surface area (which is the length times the width) to get the height.

Eliz.

 

[MBH_14]

Alright, I managed to get the volume and divide out the surface are, but what i was confused on was what unit i should use, ft, or cm, or what for the final answer?

 

[MBH_14]

nevermind on that, got it figured out, thanks!