Answer:
Answer:
15 grams  of alcohol is circulating in his blood
Explanation:
BAC (Blood alcohol content) is defined as the certain level of alcohol in the blood stream.
Given,
BAC of an adult male = 0.30 = 0.30 g/100 ml
Total blood volume = 5 L = 5000 ml
Mass of alcohol in 5000 ml of blood:
= 0.30 g/100 ml × 5000ml
= 15g
Therefore,
15 grams  of alcohol is circulating in his blood
