Answer: 65.7 gram
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of 
are produced by = 2 moles of 
Thus 0.219 moles of will be produced by =
of
Mass of 
Thus 65.7 g of NaI, must be used to produce 55.6 g of iodine
Gases take the shape of their container. When you have a large container, the spaces between molecules (particles) can be further apart than if they were close together. In small containers, the particles are forced to be closer together, or compressed.
Think of it like a pep rally in a gym v.s. a classroom. In the gym, everyone has a bit of wiggle room. With the same number of people in a classroom, everyone would need to be packed in there. This can also explain why a smaller pot over boils from steam before a larger one does, even if the amount of water is the same.
It equals 2000 but in this case it would be 20,000mm3
I’m in chemistry too. Giving this my best guess I’d say
Independent: Gem Mines
Dependent: Gem clarity
Controlled: Temperature
