At 25°C, K = 0.090 for the following reaction. H2O(g) + Cl2O(g) equilibrium reaction arrow 2 HOCl(g) Calculate the concentrations of all species at equilibrium for each of the following cases. (a) 1.3 g H2O and 2.2 g Cl2O are mixed in a 1.5-L flask.

Explanation:

1. Chemical reaction:

2. Initial concentrations:

i) 1.3 g H₂O

ii) 2.2 g Cl₂O

3. ICE (Initial, Change, Equilibrium) table

I            0.0481      0.0326            0

C              -x                 -x              +x

E          0.0481-x    0.0326-x         x

4. Equilibrium expression

5. Solve:

Use the quadatic formula:

The positive result is x = 0.00909

Thus the concentrations are:

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.