Mercury is commonly supplied in flasks containing 34.5 kg (about 76 lb) of the element, which has a density of 13.6 g/cm3. What is the volume, in liters, of this much mercury? correct sig figs

Answer 1

mass = volume x density.
Substitute the numbers in the problem and solve for volume in cc. Convert to L. Show your work if you get stuck.

Answer 2

do i have to use the 76lbs or could I just use the 34.5kg

Answer 3

Use 34.5 Kg but it has to be converted to grams. 34.5kg=34500g

Answer 4

ok sounds good. does anyone mind solving it out so that I can check my answer

Answer 5

i got 2.5L is that correct?

Answer 6

Yes, but the problem states the answer should be to the correct number of significant figures. You have three s.f. in 34.5 kg and 13.6 in g/cc so you can have 3 s.f. in your answer. 2.5 is two places.

Answer 7

oh yeah i forgot so it is 2.54L

Answer 8

right

Answer 9

m= v•d
34.5 kg= v(13.6 g/cm³)

•derive your equation to get the volume (v):
v= [34.5 kg/ (13.6 g/ cm³)]

•before solving, convert kg to g:
v= [(34, 500 g)/ (13.6 g/ cm³)]
= 2, 536.76 cm³

•covert in liters and round it off:
v= 2.5 L