Question

Im really frusterated and neeeeed help!!!

Answer 1

Sure. So, for NaCl, I get the same thing for mass, molar mass, and moles of the compound.

Answer 2

But since in 1 NaCl there is 1 Na and 1 Cl, I get the same value for moles of each element as moles of the compound.

Answer 3

Then you use Avogadro's number to convert to atoms.

Answer 4

does that make sense to you

Answer 5

No...

Answer 6

ughh me neither!!! so how would you do the next one?

Answer 7

What you have so car looks good.

Answer 8

*far

Answer 9

What I would do to get moles of each element is:
For 1 mole of the compound, you have 12 moles of C, 22 moles of H, and 11 moles of O.

Answer 10

Multiply.

Answer 11

Then to convert each to atoms, use Avogadro's number.

Answer 12

so 2904 (6.02 x 10 ^23)

Answer 13

0.0339 moles of C, 0.0622 moles of H, and 0.0311 moles of O.

Answer 14

What does 2904 represent?

Answer 15

I multiplied 12 22 and 11

Answer 16

I meant multiply the number of moles of the compound by the number of times each element occurs in the compound.

Answer 17

what do you get?

Answer 18

You need to calculate the number of moles and atoms of each element separately.

Answer 19

2.04 x10^23 atoms of C, 3.75 x10^22 atoms of H, and 1.87x10^22 atoms of O.

Answer 20

Or sum the number of moles, then multiply by Avogadro's number to get total number of atoms.

Answer 21

so I add 2.04 3.75 and 1.87

Answer 22

No, add 0.0339, 0.0622, and 0.0311.

Answer 23

so 7.65744?

Answer 24

Sorry, my mistake. Atoms of C should be 2.04 x10^22.

Answer 25

so that's not right

Answer 26

I made a typo. Atoms of C should be 2.04 x 10^22, not 2.04 x 10^23.

Answer 27

what do you get for the final answer?

Answer 28

im about to give up on this!

Answer 29

I summed up all the atoms of each element to get 7.66 x 10^22 atoms. I don't know if that is what you are looking for or no though.

Answer 30

no its not, its supposed to be just one number

Answer 31

Then I can't help you.