the density of alcohol is 0.789 g/ ml at 20 degree celcius . calculate the mass of a 30 ml sample?
mass = volume x density. Substitute and solve.
23.67
To calculate the mass of a 30 ml sample of alcohol, you need to use the formula:
Mass = Density × Volume
Given that the density of alcohol is 0.789 g/ml and the volume is 30 ml, you can substitute these values into the formula:
Mass = 0.789 g/ml × 30 ml
Now, multiply the density (0.789 g/ml) by the volume (30 ml):
Mass = 0.789 g/ml × 30 ml = 23.67 g
Therefore, the mass of a 30 ml sample of alcohol is 23.67 grams.