Calculating Charge with known voltage and Capacitance in a network

[abigailb55]

Calculate the charge Q1, on the positive plate of capacitor.

In a previous step in the problem I found the Ceq to be 7.6E-6 and know this to be the correct answer.

Q=VCeq
I used the equation above but the number I found was incorrect.

I am also asked these question and I have no idea what to do with them:

I am also asked this question:

Calculate the charge Q4, on the positive plate of capacitor C4.

Calculate the voltage V2, across capacitor C2.

What is the total energy stored in this capacitor network?

 

[gneill]

You'll have to show more of your work so that we can see what's gone wrong. Can you post your calculations?