Question

Which equilibrium reaction will experience a shift towards the products in equilibrium position when the concentration of ni2+ is increased? view available hint(s) which equilibrium reaction will experience a shift towards the products in equilibrium position when the concentration of is increased? ni2+(aq)+6nh3(aq)⇌[ni(nh3)6]2+ [ni(h2o)6]2+(aq)+3en(aq)⇌[ni(en)3]2+(aq)+6nh3(aq) ni(oh)2(s)⇌ni2+(aq)+2oh−(aq) nis(s)⇌ni2+(aq)+s2−(aq)?

Answer 1

Answer is 
      Ni²⁺(aq) + 6NH₃(aq) ⇌ [Ni(NH₃)₆]²⁺

When the concentration of Ni²⁺(aq) increases, according to the Le Chatelier’s principle system tries to become equilibrium by reducing the increased factor. To do that, the concentration of Ni²⁺(aq) should be reduced. Hence, the forward reacted should be promoted to reduce the Ni²⁺(aq) concentration.