A 1.00 L buffer solution is 0.250 mol L-1 in HF and 0.250 mol L-1 ...

[ereecah]

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

[tuwy]

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[ereecah]

Wow, this really help

[fatboyy09]

Thanks for the timely response, appreciate it