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A buffer solution is 1.0 M in HF (Ka=6.8*10^-4) and 2.0 M in NaF. What is the pH of this solution after the addition of 0.4 mol NaOH to 1.0 L of this buffer solution?
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A 25.0-mL sample of 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M lead(II) nitrate solution and this precipitation reaction occurs: 2KCl(aq) + Pb(NO 3 ) 2 (aq) -------> PbCl 2 (s) + 2KNO 3 (aq) Th ...
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