by **Guest** » Thu Jun 24, 2004 10:32 pm

Density is mass / volume, so your answer is 2.75/2.00 in g/ml.

First get the problem into common units - 1lb = 0.454 kg = 454grams. The volume of the butter is 6.5 x 6.5 x 12 = 507cm^3 = 507 ml (1ml = 1cm^3). The density of the butter in g/ml is mass / volume = 454 / 507 = ... you can do this bit, then compare with density of water.