JAMB - Chemistry (2023 - No. 68)
What is the mass (in grams) of 500 mL of ethanol? (density of ethanol = 0.789 g/mL)
394.5 mL
500 mL
394.5 g
500 g
설명
To calculate the mass of a substance, we can use the formula:
Mass = Volume x Density
Given the volume of ethanol is 500 mL and the density of ethanol is 0.789 g/mL, we can plug the values into the formula:
Mass = 500 mL x 0.789 g/mL = 394.5 g
Mass = Volume x Density
Given the volume of ethanol is 500 mL and the density of ethanol is 0.789 g/mL, we can plug the values into the formula:
Mass = 500 mL x 0.789 g/mL = 394.5 g