Greg modeled the water cycle for a science project. He added water to a large pot. Then he placed a sheet of glass on top of the
pot. He heated the pot until the water changed to water vapor. The picture below shows what Greg observed.
Which process caused the water vapor to form liquid water droplets where the drawing shows them?
A. condensation
B. evaporation
C. freezing
D. precipitation
Which process caused the water vapor to form liquid water droplets where the drawing shows them?
A. condensation
B. evaporation
C. freezing
D. precipitation
1 answer:
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<u>Answer:</u> The mass of produced is 889.38 g
<u>Explanation:</u>
We are given:
Moles of Al = 8 mol
Moles of = 10 mol
For the given chemical reaction:
By stoichiometry of the reaction:
If 3 moles of chlorine gas reacts with 2 moles of Al
So, 10 moles of chlorine gas will react with = of Al
As the given amount of Al is more than the required amount. Thus, it is present in excess and is considered as an excess reagent.
Thus, chlorine gas is considered a limiting reagent because it limits the formation of the product.
By the stoichiometry of the reaction:
If 3 moles of produces 2 mole of
So, 10 moles of will produce =
of
The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:
We know, molar mass of = 133.34 g/mol
Putting values in above equation, we get:
Hence, the mass of produced is 889.38 g