Question

an organic liquid has a density of 1.2 g/cm³. what is the mass of a 35.0 cm³ sample of this liquid? 35 g 29 g 42 g 36 none of the above

Explanation:

Step1: Recall density formula

The formula for density is $
ho = \frac{m}{V}$, where $
ho$ is density, $m$ is mass, and $V$ is volume. We need to solve for $m$, so rearrange the formula to $m =
ho \times V$.

Step2: Substitute values

Given $
ho = 1.2\ \text{g/cm}^3$ and $V = 35.0\ \text{cm}^3$. Substitute into the formula: $m = 1.2\ \text{g/cm}^3 \times 35.0\ \text{cm}^3$.

Step3: Calculate the product

$1.2 \times 35.0 = 42$. So the mass $m = 42\ \text{g}$.

Answer:

42 g (corresponding to the option "42 g")