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1(A)What is the pH of a 0.448 M solution of HF with ka = 6.8*10-4? (B)In...

1(A)What is the pH of a 0.448 M solution of HF with ka = 6.8*10-4?

(B)In part A you probably made the approximation that 0.448 - x 0.448. Check the approximation by calculating the % that x is of 0.448.

2)a)Calculate the molar concentration of OH− ions in an 1.71 M solution of hypobromite ion (BrO−; Kb = 4.0 10-6).

b)What is the pH of this solution?

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