A 30.84 cm-3 volume of 0.128 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 5.441g sample of vinegar .calculate the percent acetic acid in the vinegar.(Molar mass of vinegar is 60.05g/mol)

4.36%

Explanation:

Here is the complete question:

Calculate the percent acetic acid in vinegar when a 30.84cm^3 volume of 0.128 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 5.441g sample of vinegar.(molar mass of vinegar is 60.05g/mol)

moles NaOH = 0.03084 dm^3 x 0.128

M=0.00395

mass acetic acid = 0.00395 mol x 60.05 g/mol=0.237 g

Percentage of acetic acid:

= 0.237 x 100/ 5.441

= 23.7/5.441

= 4.36%

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explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,

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