We have a solution of NH4Cl. What effect will the addition of NaCl have on the solution?

Question

1. increase the pH
2. increase the H3O+
3. no effect
4. decrease the pH

Answer 1

Nh4Cl + NaCl -----> NH4+ + Na+ + CL-

why am I thinking that the common ion effect disscussed in le chatlier's principle forces the formation of more NH4Cl?

is this an equillibrium or just a reaction

and is NH4CL a base which would result in a reased pH?

I AM GONNA GUESS 1, INCREASE

Answer 2

NaCl is just another salt, so the pH doesn't change. H3O+ is heavy water and is quite rare in most aqueous solutions. I would say no effect.

Answer 3

No effect. The only double replacement reaction possible would be the swapping of chlorides. This is what would happen:

NH4Cl + NaCl → NH4Cl + NaCl