Question

3. Titration of antacid tablets Tablet 1 Tablet 2 Data and calculations Brand name of tablet Active ingredient TuMS Antarcid Tablets Tums Antacid rah Kalcium carbonate calcium card Milligrams of active ingredient (from the manufacturer's label) Soo mg 3 09090909 32 29 3$ 28.03 32 3 5 2 3 M & M ml M ml s 3 M Mass of tablet + beaker Mass of empty beaker Net mass of tablet Molarity of HCl solution Volume of HCl added to tablet Molarity of NaOH titrant Volume of NaOH titrant Final buret reading Initial buret reading Net volume of NaOH Millimoles of HCl solution added to tablet Millimoles of NaOH solution required to neutralize the excess HCI Millimoles of HCl neutralized by the antacid tablet 12 m mL mL mmol mmol mmol mmol mmol mmol Write the balanced chemical equation(s) for the reaction of HSI with the

Answer 1

Tablet 1.

(i) Millimoles of HCl solution added to Tablet = 3 mmol/mL * 5 mL = 15 mmol

(ii) Millimoles of NaOH required to neutralize the excess HCl = 15 - (0.3 mmol/mL * 13 mL) = 11.1 mmol

(iii) Millimoles of HCl neutralized by the antacid tablet = 15-11.1 = 3.9 mmol

(iv) Calculated mass (m_calc) of active ingradient = (11.1/2) mmol * 100 g/mol = 555 mg

(v) m_mfg = 500 mg

(vi) Percentage relative difference = {(555 - 500)/500}*100 = 11%

(vii)