Current location - Training Enrollment Network - Mathematics courses - 20 1 1 How to do the second and fourth questions of the second model of senior three chemistry in Changning District?
20 1 1 How to do the second and fourth questions of the second model of senior three chemistry in Changning District?
2) Assuming that the consumed SO2 is xmol,

SO2+ 1/2O2 = SO3

0.4-0.2 before equilibrium.

Change x 0.5x x

Balance 0.4 x 0.2-0.5 x

(0.6-0.5x)/0.6 = 16/20

Find x

The conversion rate of SO2 is 100% x/0.4=?

You do the rest yourself.

4) I forgot the chemical reaction formula of electrochemistry, and it should be done directly according to that electrode reaction.