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kenny6666 [7]
2 years ago
11

Need help with this problem asap ​

Chemistry
1 answer:
ehidna [41]2 years ago
8 0

Answer:

Is that all of the problem??

Explanation:

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Given the following chemical reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of oxygen is required to completely react with 20 grams
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The chemical equation is:
CH₄ + 2O₂ → CO₂ + 2H₂O

First, we calculate the moles of methane present using:
Moles = mass / molecular mass
Moles = 20 / 16
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Next, we may observe from the chemical equation that the molar ratio between methane and oxygen is 1 : 2
So the moles of oxygen required are 2 x 1.25
2.5 moles of oxygen required

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Moles = 80

C. 80 grams O₂
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