# Problem: Given the two reactions:H2S ⇌ HS- + H+           K1 = 9.56 x 10 -8 and HS- ⇌ S2- + H+              K2 = 1.44 x 10 -19What is the equilibrium constant K final for the following reaction?S2- + 2H+ ⇌ H2S

###### FREE Expert Solution
81% (453 ratings)
###### FREE Expert Solution
81% (453 ratings) ###### Problem Details

Given the two reactions:

H2S ⇌ HS- + H+           K1 = 9.56 x 10 -8 and

HS- ⇌ S2- + H+              K2 = 1.44 x 10 -19

What is the equilibrium constant K final for the following reaction?

S2- + 2H+ ⇌ H2S

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemical Equilibrium concept. You can view video lessons to learn Chemical Equilibrium. Or if you need more Chemical Equilibrium practice, you can also practice Chemical Equilibrium practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofGiven the two reactions:H2S ⇌ HS- + H+           K1 = 9.56 x...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 4 minutes and 8 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Vartia's class at KU.