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(Solved): Practice: A 31.43 mL volume of 0.108 M NaOH is required to reach the phenolphthalein endpoint in the ...



Practice: A 31.43 mL volume of 0.108 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 4.441 g sample of vinegar. Calculate the percent acetic acid in vinegar?

Practice:
A \( 31.43 \mathrm{~mL} \) volume of \( 0.108 \mathrm{M} \mathrm{NaOH} \) is required to reach the phenolphthalein
Practice: A volume of is required to reach the phenolphthalein endpoint in the titration of a sample of vinegar. Calculate the percent acetic acid in vinegar?


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To calculate the percent acetic acid in vinegar,

we need to determine the amount of acetic acid    present in the 4.441 g sample of vinegar




Convert the volume of NaOH used to liters : Volume of    = 31.43 mL = 0.03143 L





Calculate the number of moles of NaOH used in the titration:
Moles of   =    Moles of    = 0.108 M * 0.03143 L
= 0.003392 moles
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