Answer:5 grams of alcohol is circulating in his blood
Step-by-step explanation:
BAC (Blood alcohol content) means that level of alcohol in the blood stream.
Given BAC of an adult male = 0.10 = 0.10 g/100 ml
Total blood volume = 5 L = 5000 ml
MAss of alcohol in 5000 ml of blood:

5 grams of alcohol is circulating in his blood