Question

1. what is the mass of the ethyl alcohol that exactly fills a 200.0 ml container? the density of ethyl alcohol is 0.789 g/ml.

Explanation:

Step1: Recall the density formula

The formula for density ($
ho$) is $
ho = \frac{m}{V}$, where $m$ is mass and $V$ is volume. We can rearrange this formula to solve for mass: $m=
ho\times V$.

Step2: Identify the given values

The density of ethyl alcohol ($
ho$) is $0.789\ \text{g/mL}$, and the volume ($V$) of the container (which is the volume of the ethyl alcohol) is $200.0\ \text{mL}$.

Step3: Calculate the mass

Substitute the given values into the formula $m =
ho\times V$. So, $m=0.789\ \text{g/mL} \times 200.0\ \text{mL}$.
Calculating this, $0.789\times200.0 = 157.8\ \text{g}$.

Answer:

The mass of the ethyl alcohol is $157.8\ \text{g}$.