Which is more concentrated vinegar ( 5%. W/V) acetic acid or 1 M acetic acid.
1 M acetic acid is more concentrated than vinegar (5% w/v) acetic acid.
5% w/v acetic acid means that it contains 5 grams of acetic acid per 100 mL of solution, which is equivalent to approximately 0.83 M acetic acid.
On the other hand, 1 M acetic acid means that it contains 1 mole of acetic acid per liter of solution, which is 12 times more concentrated than 5% w/v acetic acid.
To determine which solution of acetic acid is more concentrated, we need to compare the percentage concentration (5% W/V) and the molarity (1 M) of acetic acid.
The percentage concentration (5% W/V) refers to the weight-to-volume ratio of acetic acid in the solution. This means that for every 100 mL of the solution, there are 5 grams of acetic acid.
On the other hand, the molarity (1 M) refers to the number of moles of acetic acid dissolved in 1 liter (1000 mL) of solution.
To compare the concentrations, we need to convert grams to moles. The molar mass of acetic acid (C2H4O2) is approximately 60.05 g/mol.
For the 5% W/V solution, we can calculate the number of moles of acetic acid:
(5 g / 60.05 g/mol) / (0.100 L) = 0.083 M
Comparing this to the 1 M solution, the 1 M acetic acid solution has a higher concentration of acetic acid. Therefore, the 1 M acetic acid solution is more concentrated than the 5% W/V acetic acid solution.