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A 1.443 g sample of CaCO3 mixture is treat with Hydrochloric acid, evolving CO2 gas. After the reaction, the mixture has a mass of 1.194 g.
a. Explain how many grams and moles of CO2 gas are evolved?
b. Explain how many moles and grams of CaCO3 are in the mixture?
c. Define what is the percent of CaCO3 in the mixture?
A 100.0 mL sample of 0.20 M HF is titrated with 0.10 M KOH. Determine the pH of the solution after the addition of 200.0 mL of KOH. The Ka of HF is 3.5 × 10-4. This is at the equivalence point; so, determine the pH of the resulting salt (KF).
How could you use a conductometric titration to determine the molarity of either reacting solutions, assuming you knew the concentration of one
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