A 2.1- F capacitor is fully charged by a 6.0-V battery. The battery is then disconnected. The capacitor is not ideal and the charge slowly

A 2.1- μF capacitor is fully charged by a 6.0-V battery. The battery is then disconnected. The capacitor is not ideal and the charge slowly leaks out from the plates. The next day, the capacitor has lost half its stored energy.

 

Calculate the amount of charge lost. Express your answer to two significant figures and include the appropriate units. ? AQ = Value Units