1. The problem statement, all variables and given/known data A 197-pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a 25.4-V battery. If the 197-pF capacitor stores 143 pC of charge on its plates, what is the unknown capacitance? 2. Relevant equations Q = C*V (charge stored on each capacitor) Total Capacitance = 1/C1+1/C2 Total Charge Stored = QTotal = CTotal*VTotal 3. The attempt at a solution I don't even know where to start. It seems like I should just be able to use one of the equations above but just rearrange it so I am solving for the unknown capacitor.