the mole!

okay.

AGAIN! we are not learning about the mole on your face but its a UNIT for particles (for example: atoms, molecules, ions)

SIMPLER EXAMPLE first!

1 dozens = 12 eggs

0.5 dozens = ?? eggs
answer: 6 eggs

NOW we have

1 mol = 6 x 10^23 particles

Question 1:
0.5 mol = ?? particles
answer: 0.5 of 6 x 10^23 particles
answer: 3 x 10^23


24 eggs = ?? dozens
answer: 2 dozens

Question 2:
1.2 x 10^24 particles = ?? mols
answer: 1.2 x 10^24 divided by 6 x 10^23
answer: 2 mols

CAN? always think in terms of dozens again if still confused.

Please please do your homework given.
WORKSHEET CHAPTER 8.3 Question 3-6 by monday, 26th July

in meantime, i still want to see your file!
get a ring file and put whatever notes i have given you since term 1 inside according to content page given to you.
only 4 ppl submitted to me.