A 55.0 gal drum weighs 75.0 lbs when empty. What will be its total mass in kg when filled with ethyl alcohol (density=0.789 g/cm^3)?

Question

A 55.0 gal drum weighs 75.0 lbs when empty. What will be its total mass in kg when filled with ethyl alcohol (density=0.789 g/cm^3)?

Answer 1

Density = mass/volume

 

Density* volume = mass

 

Based on the given density, 1 gallon of the ethyl alcohol weight 6.57 pounds per gallon.

So 55 gallons weighs 361.35 pounds. Adding the tare weight of the drum is brings this

total up to 436.35 lbs.

 

1 kg = 2.23 pounds so 436.35 pounds * 1 kg/2.23 pounds  or just over  195 and 2/3 kg