A strong lightning bolt transfers an electric charge of about 31 C to Earth (or vice versa). How many electrons are transferred? Avogadro’s number is 6.022 × 1023 /mol, and the elemental charge is 1.602 × 10−19 C. If each water molecule donates one electron, how much water is ionized in the lightning? One mole of water has a mass of 18 g/mol. Answer in units of g.

is the no. of electrons

Explanation:

Given:

No. of electrons in the given amount of charge:

As we have charge on one electron

so,

is the no. of electrons

Then we require molecules.

Now the no. of moles in this many molecules:

where

Avogadro No.

So, the mass of water in the obtained moles:

where:

m = mass in gram

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles