Question

a ring of copper weighs 7.5382g its density is 8.2g /cm3.calculate the volume of copper in the
ring

Answer 1

The density of copper should be the same in a wire as it is in a chunk,
so the answer is 8.9 g/cm3.


However, I'm assuming that this problem is really looking for the volume of the copper chunk.

Think of density as a conversion factor that you can use to convert mass→volume or volume→mass.
It's (8.9 g / 1 cm3) or (1 cm3 / 8.9 g).

To solve this problem, multiply 250 g by the latter. It's the same as dividing the mass by the density, but that's really not important here. As long as the units cancel out to a volume unit, everything's fine.

250 g x (1 cm3 / 8.9 g) = 28 cm3

Note that the grams cancel here and all that's left is cm3, which is a volume unit.

Process is Same.........okay......

Answer 2

hey this answer you ask question