Question

Find the number of Hydrogen Atoms

Answer 1

Find the number of Hydrogen atoms in one mole of \(C_6H_5CONH_2\)

Answer 2

@korosh23?

Answer 3

How many moles of hydrogen are there in that compound?

Answer 4

Take the number of moles, and multiply by 6.022 X 10^23 (avogadro's number)

Answer 5

@dtan5457, how many is there?

Answer 6

@korosh23, @pooja195?

Answer 7

It's based on the subscripts of the element, the element hydrogen is H.

There is 5 on the left, 2 on the right...how many total?

Answer 8

7

Answer 9

Right, now multiply that by avogadro's number (the one gave you on my first post)

Answer 10

Really? Thats it? But isn't the whole compund one mole?

Answer 11

@dtan5457?

Answer 12

Yeah, you have ONE mole of that compound, but that compounds has many moles of different elements.

Answer 13

So, 7 * Avagadro's number?

Answer 14

Yes

Answer 15

THANK YOU :D

Answer 16

np

Answer 17

what haeppens if you had two moles of that substance?

Answer 18

@dtan5457

Answer 19

@dtan5457?

Answer 20

Multiply hydrogen by 2, you would have 14 moles of hydrogen

Answer 21

I see. SO you would multiply the number of Hydrogen Atoms by Avagardro's number AND the number of moles in a substance?