Question

5 mL Mass of acetic acid in the vinegar sample: 0.2774 g What is the mass percent of acetic acid in the vinegar sample (Assume that 5 mL of the vinegar sample weights 5 g)?

Answer 1

The mass percent of acetic acid in the vinegar sample is calculated by dividing the mass of acetic acid by the mass of the vinegar solution, and then multiplying by 100%. Based on the provided masses, the mass percent is 5.548%.

Step-by-step explanation:

To calculate the mass percent of acetic acid in the vinegar sample, the following formula can be used:

Mass percent = (Mass of solute / Mass of solution) x 100%

Based on the information given, we have 0.2774 g of acetic acid in 5 g of vinegar solution (since we assume that 5 mL of the vinegar sample weighs 5 g).

Mass percent = (0.2774 g / 5 g) x 100% = 5.548%

Therefore, the mass percent of acetic acid in the vinegar sample is 5.548%.