mercury has a density of 13.55 g/mL.what volume is occupied by 1/4 lb of mercury?

Question

i need answers..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Answer 1

1/4 lb = 0.25 pounds * 453.6g/lb *mL/13.55g = 8.369 mL

1/4 lb of mercury has a volume of 8.37 mL

Answer 2

0.25 pounds = 113.3980926 grams
Therefore, 1/4 lb of mercury occupies a volume of 113.3980926/13.55 mL=8.37 mL

Answer 3

Since 1lb=454g, than 1/4lb = 113.5g. To get the volume, you have to divide mass by density: 113.5g/13.55 g/mL = 8.38 mL. Keep in mind that I am keeping two significant figures, since 13.55 is an exact number.

Answer 4

thanks I've always wondered what the density of mercury was ( oh wait THE DENSITY CHANGES WITH TEMPERATURE that's what makes it the fluid of choice for thermometers ) ( hope this was a math only ? and not a trick ? on a science exam --and it was a poor choice if it was --but what do you expect from a 2006 textbook )

Answer 5

Good point, at what temperature!