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Science Clinic => Chemistry => Topic started by: ereecah on Nov 18, 2019

Title: A 1.00 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 in LiF. Calculate the pH of the ...
Post by: ereecah on Nov 18, 2019

Question 1

A 1.00 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 in NaF. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 mol L-1 HCl. The Ka for HF is 3.5 × 10-4.
◦ 4.11
◦ 3.09
◦ 2.78
◦ 3.46
◦ 3.82

Question 2

A 1.00 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 in LiF. Calculate the pH of the solution after the addition of 0.150 moles of solid LiOH. Assume no volume change upon the addition of the base. The Ka for HF is 3.5 × 10-4.
◦ 4.24
◦ 3.63
◦ 2.85
◦ 3.46
◦ 4.06

Title: A 1.00 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 in LiF. Calculate the pH of the ...
Post by: tuwy on Nov 18, 2019

Answer 1

3.09

Answer 2

4.06