205192823
Posts: 54
Joined: Wed Sep 18, 2019 12:19 am

Do you use the Avogadro's number when you have to convert the the number of atoms to moles? Q:E7

LReedy_3I
Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

Yes, Avogadro's number is the number of atoms in one mole. For E7, I divided 2.1x10^9 atoms of carbon by 6.022x10^23 to determine the number of moles to be 3.5x10^-15 mol.

205192823
Posts: 54
Joined: Wed Sep 18, 2019 12:19 am

LReedy_3I wrote:Yes, Avogadro's number is the number of atoms in one mole. For E7, I divided 2.1x10^9 atoms of carbon by 6.022x10^23 to determine the number of moles to be 3.5x10^-15 mol.

Thank you!

Maya Pakulski 1D
Posts: 63
Joined: Thu Jul 11, 2019 12:17 am

Slide 5 of this power point ( https://www.slideshare.net/smartensen/mole-calculations) has a good diagram to show how to convert from atoms, moles, grams and liters!

Letty Liu 2C
Posts: 62
Joined: Fri Aug 09, 2019 12:16 am

Yes because Avogadro’s number represents the amount of something contained in one mole.

Maya Gollamudi 1G
Posts: 60
Joined: Thu Jul 25, 2019 12:15 am

Yes, Avogadro's number represents the number of objects, in this case, atoms, in 1 mole. For problem E7, you divide the given number of atoms (2.1 x 10^9) by Avogadro's number (6.022 x 10^23) to determine the number of moles of carbon present.

Trent Yamamoto 2J
Posts: 64
Joined: Sat Aug 17, 2019 12:18 am

Since Avogadro's number represents the number of atoms in 1 mole. On E7, you would divide 2.1 x 10^9 by Avogadro's number (6.022 x 10^23) to get the number of moles of Carbon.

Claire Grover 3G
Posts: 64
Joined: Wed Sep 18, 2019 12:18 am

Yes, because Avogadro's Number represents the amount of atoms per mole. Therefore when given the amount of moles you divide by Avogadro's Number to get the amount of atoms.

Alison Trinh 1E
Posts: 63
Joined: Thu Jul 25, 2019 12:16 am