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Weighed out KHP and titrated with NaOH

Weighed out KHP and titrated with NaOH. Determine NaOH conc. to 4 S.F. Titrate unknown vinegar with known NaOH. Determine dilute vinegar conc. to 4 S.F. Moles of acetic acid in dilute 20 mL titrated sample. Mass of CH 3 COOH and solution. Calculate mass percent.

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Weighed out KHP and titrated with NaOH

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  1. Weighed out KHP and titrated with NaOH Determine NaOH conc. to 4 S.F. Titrate unknown vinegar with known NaOH Determine dilute vinegar conc. to 4 S.F. Moles of acetic acid in dilute 20 mL titrated sample Mass of CH3COOH and solution. Calculate mass percent. Moles of acetic acid in dilute 250 mL Vol Flask Moles of acetic acid in original conc. 20.00 mL vinegar sample Grams of acetic acid in original conc. 20.00 mL vinegar sample DensityVinegar = 1.0031 g/mL

  2. NaOH Two GOOD Trials Calculate the concentration of DILUTE acetic acid for two good trials separately using the KNOWNclass average NaOH concentration. Dilute Vinegar CH3COOH(aq) + NaOH(aq) -----> NaCH3COO(aq) + H2O(l) Conc. CH3COOH = _______M Conc NaOH = KNOWN Vol CH3COOH = ______ mL Vol NaOH = ______ mL Moles CH3COOH = ______ mol Moles NaOH = ______ mol 1:1

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