The vinegar that you can buy at a grocery store is actually a dilute acid solution that is 5.0% w/v acetic acid (CH3COOH). Baking soda (NaHCO3) reacts with vinegar according to the following balanced chemical equation: NaHCO3 + CH3COOH → CO2 + H2O + NaCH3COOH How many grams of baking soda do you need to react completely with 50. mL of vinegar?

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A: Temperature = 298 K  Pressure = 1 atm  Volume collected = 78 ml = 0.078 L

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A: At equivalent point,  Geq. of NaOH  = Geq. of KHP N1V1 = N2V2 M × 16.8 /1000 = 0.261/204 M = 0.076M

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