1.00 liter solution contains 0.36 moles hydrofluoric acid and 0.28 moles sodium fluoride . If 0.14 moles of hydroiodic acid are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of hydroiodic acid.)   A. The number of moles of HF will remain the same.   B. The number of moles of F- will decrease.   C. The equilibrium concentration of H3O+ will increase.   D. The pH will remain the same.   E. The ratio of [HF] / [F-] will remain the same.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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A 1.00 liter solution contains 0.36 moles hydrofluoric acid and 0.28 moles sodium fluoride .

If 0.14 moles of hydroiodic acid are added to this system, indicate whether the following statements are true or false.

(Assume that the volume does not change upon the addition of hydroiodic acid.)
 

A. The number of moles of HF will remain the same.

 

B. The number of moles of F- will decrease.

 

C. The equilibrium concentration of H3O+ will increase.

 

D. The pH will remain the same.

 

E. The ratio of [HF] / [F-] will remain the same.

 
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