The yellow beams in the model represent equal amounts of radiation coming from the Sun. Based on information shown in the model,
which statement is false?
A. Sunlight is more spread out at the poles than the equator.
B. The regions near the poles get the most-intense sunlight.
C. Higher latitudes get less-direct sunlight than lower latitudes.
D. The equator gets the most-direct radiation from the Sun.
(PLEASE HELP)
A. Sunlight is more spread out at the poles than the equator.
B. The regions near the poles get the most-intense sunlight.
C. Higher latitudes get less-direct sunlight than lower latitudes.
D. The equator gets the most-direct radiation from the Sun.
(PLEASE HELP)
2 answers:
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Answer:
8.70 liters
Explanation:
- 3O₂+ 4Al → 2AI₂O₃
First we <u>convert 36.12 g of AI₂O₃ into moles</u>, using its <em>molar mass</em>:
- 36.12 g ÷ 101.96 g/mol = 0.354 mol AI₂O₃
Then we <u>convert AI₂O₃ moles into O₂ moles</u>, using the stoichiometric coefficients of the reaction:
- 0.354 mol AI₂O₃ *
= 0.531 mol O₂
We can now use the <em>PV=nRT equation</em> to <u>calculate the volume</u>, V:
- 1.4 atm * V = 0.531 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 280.0 K
- V = 8.708 L