S1-6 6. Tartaric acid, H204H406, is often present in wines and will precipitate

Question

S1-6 6. Tartaric acid, H204H406, is often present in wines and will precipitate from solution as the wine ages. To determine the concentration of this acid a 30.00 mL sample was obtain from a wine vat and titrated with a standard 0.2200 M sodium hydroxide solution. It was determined that this wine sample required 37.50 mL of the base solution to neutralize both of the acidic protons in the tartaric acid. What is the Molarity of the tartaric acid in this vat of wine? The density of this wine is 1.11 g/mL H2C4H4062 NaOHNa2C4H406 + 2 H20

Explanation / Answer

H2C4H4O6 + 2NaOH ----------> Na2C4H4O6 + 2H2O

V1 volume of tartaric acid

n1 = no. of moles of tartaric acid

n2 = no. of moles of NaOH

V2 = Vol of NaOH   

M1V1/n1 = M2V2/n2

(M1x30) /1 = (0.2200x37.50)/2

molarity of tartatric acid M1= 0.1375

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