4. A 0.201 g sample of antacid is dissolved in water, and then 50.0 mL of 0.100 M HCl is added so that the solution is acidic. The excess HCl is then titrated with 0.0883 M NaOH to the equivalence point. The back titration requires 20.33 mL to reach the endpoint.

b. How many moles of HCl was added initially?

c. How much excess HCl was titrated with NaOH(in mol HCl)?

d. How many moles of HCl were neutralized by the antacid?

e. What is the effectiveness of the antacid (in mol HCl neutralized/g antacid)?

Question

4. A 0.201 g sample of antacid is dissolved in water, and then 50.0 mL of 0.100 M HCl is added so that the solution is acidic. The excess HCl is then titrated with 0.0883 M NaOH to the equivalence point. The back titration requires 20.33 mL to reach the endpoint.

b. How many moles of HCl was added initially?

c. How much excess HCl was titrated with NaOH(in mol HCl)?

d. How many moles of HCl were neutralized by the antacid?

e. What is the effectiveness of the antacid (in mol HCl neutralized/g antacid)?

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