"a. How many sulfur atoms in a 6 mole quantity of sulfur atoms?" "b. How many sulfur atoms in a 6 mole quantity of" S_8 "molecules?"

"c. How many atoms in a 5 mole quantity of sulfur dioxide?"
"d. How many atoms in a 2 mole quantity of sulfur dioxide?"

1 Answer
May 13, 2017

You know, I could replace "moles" by "dozens" here and get the right answer.

Explanation:

The mole is just another number, admittedly it is a very large number, N_A=6.022xx10^23*mol^-1. Let's do the problem by using "dozens": "1 dozen"="12 items of stuff".

a. "6 dozen S atoms" -= "72 sulfur atoms"

b. "2 dozen" S_8 "atoms" -= "192 sulfur atoms"

c. "5 dozen" SO_2 "molecules" -= "60 sulfur atoms" and "120 oxygen atoms".

d. "2 dozen" CO_2 "molecules" -= "24 carbon atoms" and "48 oxygen atoms".

And the answer is clearly b. Are you following me?