What is the concentration of alcohol, in terms of molarity, in blood if the bac is 0.08?

The molarity of the given solution is  .

Further explanation:

Blood alcohol concentration:

The term BAC is also known as blood alcohol concentration. Blood alcohol concentration is a measure of the concentration of alcohol in blood. The BAC is expressed in terms of grams of alcohol present in 100 mL of blood. For example, if BAC is 0.12 % that means 0.12 g of alcohol present in 100 mL of blood.

Molarity:

The molarity of the solution can be defined as the concentration of the solution and is equal to the number of moles of the solute dissolved in 1 liter of the solution.

The expression of molarity (M), volume (V), and number of moles (n) is as follows:

          ...... (1)

Here, V is a volume of solution in liters and n is a number of moles of solute.

The given BAC is 0.08 that means 0.08 g of alcohol is present in 100 mL of blood.

The molar mass of alcohol (ethanol) is 46.068 g/mol. Therefore, the number of moles of alcohol present in 0.08 g of alcohol is,

The molarity of the alcohol solution in blood can be calculated by dividing the number of moles (0.0017366 mol) with the volume of solution (100 mL or 0.1 L).

Therefore the molarity of solution is .

Learn more:

1. Salts produced from neutralization reaction: link

2. Complete equation for the dissociation of : link

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Solutions

Keywords: Concentration of alcohol, BAC, blood alcohol concentration, molarity, number of moles, 0.08 bac, 0.0174 mol/L.

it is stable as it is in group 0 which have full outer shells of electrons