In: Chemistry
An experiment requires 40.3 of ethyl alcohol. If the density of ethyl alcohol is 0.790 g/(cm3), what is the mass of 40.3 mL of ethyl alcohol
Density is the mass per unit volume of a substance. Mathematically, it is expressed as:
Density = Mass/Volume.
We can rearrange the above equation to get mass as:
Mass = Density x Volume
Now, use the given values of density and volume to calculate the mass of 40.3 mL of ethyl alcohol:
Mass of 40.3 mL of ethyl alcohol
= 40.3 mL x 0.790 g/cm3
= 40.3 mL x 0.790 g/mL
= 31.837 g = 31.8 g (approximately)
Note : 1.00 cm3 = 1.00 mL