Enter your answer in the provided box. The following reactions have the indicated equilibrium constants at a particular temperature:N2(g)+ O2(g)⇌ 2NO(g)Kc = 8.3 ×10−252NO(g)+ O2(g)⇌ 2NO2(g)Kc = 6.4 ×109Determine the value of the equilibrium constant for the following equation at the same temperature:2NO(g)⇌ N2(g)+ O2(g)

=1.21*

Explanation:

...................1

………..2

=? ………………………3

From the given reaction  

Equation third is reverse reaction of first reaction

Hence

=1.21*

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"