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**Electrons in GRAMS :(**

## Homework Statement

Part1:

A sample of electrons is found to have a total charge of -7.68 x 10^8 C.

How many electrons are in this sample ?

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Part 2 says:

What is the mass of the above sample of electrons in grams ?

## Homework Equations

1 electron mass = 9.10938188 × 10^-28 grams]

## The Attempt at a Solution

for

**part 1**My answer was 4.79e27. And its CORRECT

for

**part 2**i keep getting 4.36 as an answer but its wrong.

I used [1 electron mass = 9.10938188 × 10^-28 grams]

and multiplied that by my answer for part 1.

PLEASE HELP, Thanks.