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karenjunior
30.06.2021 •
Chemistry
Describe and explain how molecules of oxygen behave when the temperature is so low that the oxygen solidifies.
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Ответ:
We need 0.50 L of O2 to react
Explanation:
Step 1: Data given
Volume of carbon monoxide (CO) = 1.0 L (STP)
Step 2: The balanced equation
2CO(g) + O2(g) → 2CO2(g)
Step 3: Calculate moles CO
22.4 L = 1.0 mol
1.0 L = 1.0 / 22.4 L = 0.0446 moles
Step 4: Calculate moles O2
For 2 moles CO we need 1 mol O2 to produce 2 moles CO2
For 0.0446 moles CO we need 0.0446/2 = 0.0223 moles O2
Step 5: Calculate volume O2
1.0 mol = 22.4 L
0.0223 moles = 0.50 L
We need 0.50 L of O2 to react