Acetic acid solutions called \"cleaning vinegar\" are effective in dissolving ca

Question

Acetic acid solutions called "cleaning vinegar" are effective in dissolving calcium carbonate deposits on shower tiles. What sample size of 0.9181M cleaning vinegar would require 27.50 mL of 0-5185M NaOH for neutralization? Muriatic acid is a concentrated HCI solution available in the hardware department of some stores. What maw of baking soda (sodium hydrogen carbonate, NaHCO_3 would be required to neutralize 10.00 mL of 12.1M muriatic acid remaining in a nearly empty bottle, so that the solution could be safely poured into the drain, and the bottle recycled? The reaction of NaHCO_3 with HO is shown in Equation 6. HCI(aq) + NaHCO_3 (aq) rightarrow NaC(aq) + CO_2 (g) + H_2 O(l)

Explanation / Answer

Q3.

NaOH + CH3COOH <-> H2O + NaCH3COO

so

mmol of acid = mmol of base

mmol of base = MV = 27.50*0.5185 = 14.25875 mmol of OH-

mmol of acid = 14.25875 mmol

so

Vacid = mol/M = 14.25875/0.9181 = 15.530 mL of acid will be required

Q4.

mass of Baking soda for:

mmol of acid = MV = 10*12.1 = 121 mmol of acid

mmol of base = mmol of acid = 121 mmol

mass = mmol*MW = (121)*84.007 = 10164.847 mg of baking soda

mass = 10.164 g of baking soda

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