What is the magnitude of total charge of all the electrons in 2.4 l of liquid water?

Im going to give you the process in such a way that you get the answer and it will be very easy. What you need here is the formula n = N x m / W

N = Avagadro's number,

m = mass

W = molecular weight

So the process will be like this:

n = 6.07 x10^27 x 2.4 / 18

Use your calculator and then you will have your answer