Final answer:
When you drink alcohol, you cannot be sure of your blood alcohol concentration (BAC) without actually measuring it through blood or breath testing. BAC can vary for each person depending on factors such as age, sex, and overall health. The body metabolizes alcohol at a rate of about 3.3 mmol/L (15 mg/dL) per hour.
Step-by-step explanation:
When you drink alcohol, you cannot be sure of your blood alcohol concentration (BAC) without actually measuring it through blood or breath testing. BAC can vary for each person depending on factors such as age, sex, and overall health. Additionally, the rate at which alcohol is metabolized by the body is about 3.3 mmol/L (15 mg/dL) per hour.
Legally, alcohol intoxication is often defined as a BAC of 0.08% by volume, which is considered legally drink in most US states. However, different BACs have different effects on the body, and tolerance can vary between individuals.
In conclusion, to accurately determine your BAC, you would need to use blood or breath testing.