Question

An object with a mass of 7.5 g raises the level of water in a graduated cylinder from 25.1 mL to 30.1 mL. What is the density of the object?

Answer 1

`rho=1.50*g*mL^-1`

Explanation:

By definition, `rho_"density"="Mass"/"Volume"`, and thus it typically has the units `g*mL^-1`; in this example your `7.5*g` mass displaces a `5.0*mL` of water, and thus........

`rho=(7.5*g)/((30.1-25.1)*mL)=1.50*g*mL^-1`.......