Question

If some NH4Cl is added to an aqeous solution of NH3:

A. pH of solution will decrease
B. PH will not change
C. pH will increase
D. NH4Cl cannot be added to NH3
E. The solution will not have pH

I think the answer is B, because if NH4Cl is added to the solution of NH3, then solution will be at equilibrium and pH will not change...
Nope. Look at the HF/HCl answer below and you will know how to answer this one.

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