A 5.0 V battery contains 775 C of charge. How much electricity energy can it produce?

3875J

Explanation:

Energy is defined as the power * time

And it's defined as

Power = IV - I - current and V - voltage

Now quantity of electricity; Q = I * t

Where I is current and t is time

Now Energy = I * V*t = V * I*t = V * Q;

where Q is quantity of electricity 775C and V is 5.0volt

Hence 775 * (5) = 3875J