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A 28. 0 ml sample of vinegar, which is an aqueous solution of acetic acid, ch3cooh, requires 21. 5 ml of 0. 550 m naoh to reach the endpoint in a titration

Sagot :

Concentration of vinegar sample of 28mL which requires 21. 5 ml of 0.550 M NaOH to reach the endpoint in a titration is 0.42M.

How do we calculate the concentration of Vinegar?

Concentration of vinegar in the titration method will be used by using the below equation:

M₁V₁ = M₂V₂,

  • M₁ & V₁ are the molarity and volume of acetic acid.
  • M₂ & V₂ are the molarity and volume of vinegar sample.

By putting values on above equation from the question, we get

M₂ = (0.55M)(21.5mL) / (28mL) = 0.42 M

Hence, required concentration of vinegar is 0.42M.

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