Question

g of alchol present in 2.45l of 75 proof gin density of ethonal is 0.798 g/ml =

Answer 1

Proof in the U. S. is defined as twice the alcohol content by volume; therefore, 75 proof means we have 37.5% ethanol by volume.
37.5 g in 100 mL or
37.5 x 2450 mL/100 mL = ?g ethanol in 2.45L.