The density of ethanol is 0.789 g/cm3 at 20°C. What volume of ethanol has a mass of 15.5 grams?
The density means that the mass divided by the volume with the formula: density = mass/volume. So volume=mass/density. Under same temperature, the volume=15.5/0.789=19.6 cm3=19.6 ml.
Answer:
Volume of ethanol = 19.6 cm3
Explanation:
Given:
Density of ethanol = 0.789 g/cm3
Mass of ethanol = 15.5 g
To determine:
The volume of ethanol corresponding to the given mass
Formula:
Density of a substance is essentially the mass occupied by it per unit volume
\(Density = \frac{Mass}{Volume}\)
Based on the above equation:
\(volume = \frac{Mass}{Density} =\frac{15.5 g}{0.789g/cm3} =19.6 cm3\)