Question

If a vinegar solution contains 0.26 mole of acetic acid (HC₂H₃O₂) in 30 mL of solution, what is the concentration (molarity) of the solution?

Answer 1

First, we need to convert the volume of the solution from milliliters (mL) to liters (L) since molarity is expressed in moles of solute per liter of solution.

30 mL = 0.03 L

Next, we can use the formula for molarity:

Molarity = moles of solute / liters of solution

Plugging in the given values:

Molarity = 0.26 moles / 0.03 L = 8.67 M

Therefore, the concentration of the vinegar solution is 8.67 M.