Question

One mole of potassium sulfate contains:
One mole of potassium sulfate contains:
3 moles of potassium.
2 moles of sulfur.
4 moles of oxygen.
1 mole of potassium.
none of the above
I don't know why its 4
SO4 contains 1 sulfur and 4 oxygen
K2 means 2 potassium

Answer 1

Potassium sulfate

Answer 2

yeah I know the formula symbol for potassium sulfate, my question is why is it 4 moles of oxygen?

Answer 3

K2SO4

Answer 4

@Photon336 thanks

Answer 5

let me give you another one

Answer 6

how many moles of each atom are in this compound?

Answer 7

2 moles of hydrogen 1 mole of sulfur and 4 moles oxygen

Answer 8

Correct

Answer 9

what about the molar mass?

Answer 10

yeah i think they way they asked the questioned threw me off

Answer 11

2x 1.01+32+4x16.01= whatever that is

Answer 12

32.06*

Answer 13

hold on 1 sec

Answer 14

98.12

Answer 15

Correct. last one:

if I have 12 grams of H2SO4 how many many moles do I have of that?

Answer 16

12gH2SO4x1mole/98.12gH2SO4=
Would this be the correct formula for that?

Answer 17

yeah

Answer 18

thank god lol

Answer 19

if you notice

\[12g*(\frac{ mol }{ 98g }) \]

Answer 20

notice something grams cancel out and in the numerator moles is left

Answer 21

.12229....=1.2 x 10^-1 moles of H2SO4

Answer 22

You're in good shape

Answer 23

thanks :)