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Why does the titration of terephthalic acid yield a mass of approximately half the molar mass?

Terephthalic acid is a diprotic acid; i.e., it has two COOH groups on it and each reacts with the titrant base.

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Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O.

Top answer: Convert CO2 to C, H2O to H. 46.18 mg x (atomic mass C/molar mass CO2) = 46.18 x 12/44 = approx 13 Read more.
Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O.

Top answer: Right. You will then have grams C and grams H. Note that the problem did not tell you how much O was Read more.
A 0.2053g sample of an organic acid requires by titration, 15.0 mL of 0.1008 Msodium hydroxide for complete neutralization.

Top answer: mols NaOH = M x L = ? mols acid = same if it is monoprotic. mols acid = grams/molar mass. You know Read more.
Calculate the molar mass of a diprotic acid.It reaches the endpoint of the titration with NaOH at 28ml. The initial

Top answer: molesbase=1/2 moles acid .028*.09792*1/2 .685/molmass molmassacid= .685/(2* .028*.097920 I don't get Read more.
Calculate the molar mass of a diprotic acid.It reaches the endpoint of the titration with NaOH at 28ml. The initial

Top answer: I made a mistake. the initial concentration of NaOH is 1.0M. Read more.
Titration of an Unknown Acid...What effect on the molar mass of the unknown acid would each of the following have... Would it

Top answer: These look ok to me except for #2. Rethink that one. For a monoprotic acid, mL x M x millimolar mass Read more.
Since the unkown acid is monoprotic, this also equals the number of moles of acid to use. A typical molar mass for an unknown

Top answer: I tried: 0.00052224=0.1777/x 0.00052224=380/x Read more.
i asked this question earlier and thanks to dr bob i got the empirical formula. which is C6H3O2. I need help finding the molar

Top answer: What is 43.5g/.262 ? Read more.
A student completes a titration of an unknown diprotic acid. In this experiment, 0.79 g of the acid is dissolved in 250.0 mL of

Top answer: H2A + 2NaOH ==> Na2A + 2H2O mols NaOH = M x L = ? mols H2A = 1/2 x mols NaOH (look at the Read more.
A student completes a titration of an unknown diprotic acid. In this experiment, 0.79 g of the acid is dissolved in 250.0 mL of

Top answer: This is the H2A problem and I worked that for you re the link for the post just above. Read more.