Chemistry question

Question

If a standard drink is defined as 10 g of alcohol, what volume of 38 % vodka corresponds to 1 standard drink? How many standard drinks are them in 150 mL of 8.8 % Sauvignon Blanc?

Answer 1

38% vodka = 38 g vodka/100 ml = 0.38 g vodka/ml

Thus, 0.38 g vodka/ml (x ml) = 10 g

x = 10/0.38 = 26.3 ml = 26 ml for a standard drink

 

8.8% SB = 8.8 g SB/100 ml = 0.088 g SB/ml

Thus, 0.088 g SB/ml x 150 ml = 13.2 g SB

13.2 g SB x 1 drink/10 g = 1.32 standard drinks = 1.3 standard drinks