Household vinegar is a solution of acetic acid (HCH3COO) in water. Most vinegars contain 5% acetic acid by volume. What volume of acetic acid is present in a 0.250 L bottle of vinegar?

12.5 mL of acetic acid

Explanation:

The % by volume indicates the volume of solute in 100mL of solution.

It is a common type of concentration, as percent by mass or molarity.

Our solution is made of vinegar

Our solute is the acetic acid.

(Volume of solute / Volume of solution) . 100 = 5

(Volume of solute / 0.250L) . 100 = 5

(Volume of solute / 0.250L) = 0.05

Volume of solute = 0.05 . 0.250L → 0.0125 L

We convert the volume to mL→ 0.0125 L . 1000 mL /1L = 12.5 mL

We can also see this problem by a rule of three:

We convert the 0.250L to mL → 250 mL

And we propose, if 100 mL of vinegar have 5mL of acetic acid

250 mL may have (250 . 5) / 100  =  12.5mL

it takes on an electronical energy

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?