Trial 1 Trial 2 M of NaOH(aq): Average M of NaOH(aq) from part I M of NaOH(aq): Average M of NaOH(aq) from part I Volume of vinegar: 10.00 mL. Volume of vinegar: 10.00 mL. Initial buret reading of NaOH (aq): 0.00 mL. Initial buret reading of NaOH (aq) : 12.35 mL. Final buret reading of NaOh(aq) pink color: 12.35 mL. Final buret reading of NaOh(aq) pink color: 25.00 mL. Volume of NaOH(aq): Volume of NaOH(aq): Calculations: For each trial : NaOH(aq) + CH3COOH(aq) → NaCH3COO(aq) + H₂O(1) a. Moles of NaOH(aq): volume of NaOH(aq) in L. x average M of NaOH(aq) from part I b. Moles of NaOH → moles of CH3COOH: moles of CH3COOH M of CH3COOH = moles of CH3COOH (b) / volume of vinegar in L. Get average M of CH3COOH (aq): (M+ M)/2 Mass% of CH3COOH in the vinegar solution : Molar mass of CH3COOH = 60.01 g/mole, Density of vinegar solution = 1.10 g/mole Moles of CH3COOH (b) →g of CH3COOH : c: moles of CH3COOH x molar mass of CH3COOH 10.00 mL. vinegar x 1.10 g/mL. = 10.1 g vinegar Mass% of CH3COOH = (g of CH3COOH (c) / 10.1 g vinegar) x 100 Get average of mass% of CH3COOH.
Trial 1 Trial 2 M of NaOH(aq): Average M of NaOH(aq) from part I M of NaOH(aq): Average M of NaOH(aq) from part I Volume of vinegar: 10.00 mL. Volume of vinegar: 10.00 mL. Initial buret reading of NaOH (aq): 0.00 mL. Initial buret reading of NaOH (aq) : 12.35 mL. Final buret reading of NaOh(aq) pink color: 12.35 mL. Final buret reading of NaOh(aq) pink color: 25.00 mL. Volume of NaOH(aq): Volume of NaOH(aq): Calculations: For each trial : NaOH(aq) + CH3COOH(aq) → NaCH3COO(aq) + H₂O(1) a. Moles of NaOH(aq): volume of NaOH(aq) in L. x average M of NaOH(aq) from part I b. Moles of NaOH → moles of CH3COOH: moles of CH3COOH M of CH3COOH = moles of CH3COOH (b) / volume of vinegar in L. Get average M of CH3COOH (aq): (M+ M)/2 Mass% of CH3COOH in the vinegar solution : Molar mass of CH3COOH = 60.01 g/mole, Density of vinegar solution = 1.10 g/mole Moles of CH3COOH (b) →g of CH3COOH : c: moles of CH3COOH x molar mass of CH3COOH 10.00 mL. vinegar x 1.10 g/mL. = 10.1 g vinegar Mass% of CH3COOH = (g of CH3COOH (c) / 10.1 g vinegar) x 100 Get average of mass% of CH3COOH.
Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.27QAP
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Molarity of NaOH= 0.1018m
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