Question

1. five ml of ethanol has a mass of 3.9 g and 5.0 ml of benzene has a mass of 4.48 g. which liquid is denser?

Explanation:

Step1: Calculate density of ethanol

Density formula: \(
ho = \frac{m}{V} \). For ethanol, \( m = 3.9\,\text{g} \), \( V = 5.0\,\text{mL} \).
\(
ho_{\text{ethanol}} = \frac{3.9}{5.0} = 0.78\,\text{g/mL} \)

Step2: Calculate density of benzene

For benzene, \( m = 4.48\,\text{g} \), \( V = 5.0\,\text{mL} \).
\(
ho_{\text{benzene}} = \frac{4.48}{5.0} = 0.896\,\text{g/mL} \)

Step3: Compare densities

\( 0.896 > 0.78 \), so benzene is denser.

Answer:

Benzene is denser.