What is the pH of the solution if 0.059g of sodium fluoride is added to 130.0mL...

Question

Question

What is the pH of the solution if 0.059g of sodium fluoride is added to 130.0mL of a 0.098M HF solution? K_a for HF is 6.8x10^-4.

A. 2.21

B. 5.08

C. 2.88

D. 2.11

E. 4.85

If you could show the work for this problem, I'd really appreciate it! Thanks!

Answer 1

Answer #1

Concentration of HF,1 HFI-0.098M mass of NaF molar mass of NaF Moles of NaF- 0.059g 41.99g Imol 0.0014mol Concentration of Na

Answer 2

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