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What is the mass in grams of 500 mL of ethanol ... - JAMB Chemistry 2023 Question

 

What is the mass (in grams) of 500 mL of ethanol? (density of ethanol = 0.789 g/mL)

A

394.5 mL

B

500 mL

C

394.5 g

D

500 g

correct option: c

The correct calculation for the mass of 500 mL of ethanol would be:

\[ \text{Mass} = \text{Volume} \times \text{Density} \]

Given:
- Volume of ethanol = 500 mL
- Density of ethanol = 0.789 g/mL

\[ \text{Mass} = 500 \, \text{mL} \times 0.789 \, \text{g/mL} = 394.5 \, \text{g} \]

To calculate the mass of a substance, you can use the formula: \(\text{Mass} = \text{Volume} \times \text{Density}\). Given the volume of ethanol is 500 mL and the density of ethanol is 0.789 g/mL, you can plug the values into the formula:

\[ \text{Mass} = 500 \, \text{mL} \times 0.789 \, \text{g/mL} = 394.5 \, \text{g} \]

 

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