Question

determination of the molar mass and ionization constatant of a weak, monoprotoc acid. ( Lab 8)

Instructor Name EXPERIMENTS DETERMINATION OF THE MOLAR MASS AND IONIZATION CONSTANT OF A WEAK, MONOPROTIC ACID Report Sheet B. TITRATION OF ACETIC ACID Trial 1 Trial 2 Trial 3 Acetic acid/L solution Volume of acetic acid (mL) Initial buret volume (ml) 3g/L 30 ml 30mL 30mL OmL OmL OML T 14mL 16ML | 15mL | 14 mL lemL 15mL 0.0014 mol 0.0016ml 0-0015 mol Final buret volume at end point (mL) Total volume of NaOH added at end point (mL) Moles of NaOH titrated (mol) Moles of acetic acid in sample (mol) Molarity of acetic acid (mol/L)" Molar mass of acetic acid (g/mol) Average volume of NaOH titrated (ml)' Average molar concentration of acid (M) Average molar mass of acetic acid (g/mol
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Answer 1

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Acetic acid solution 39/2 volume of acetic acid = som1 = 30 let on weight of Acetic Acid=3x39 zovoga as Moleg of Acetic Acid=0.09 CCH3COOH) 24+4+32 =0.09_1000015 co-100 snor Molarity of Acid acetic mole Ooool15 30 vol (et) = 00015 X1000 = 10:05 mol/bit Molar mass of CHg Cool (g/mol) = 0.09 Average vol- of Nach = 2m - Toog/mol Average molar of Acid=0005 mol/eit Averas molas mass of CHg Cool H= 60 g/mol