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Colt1911 [192]
4 years ago
13

What is the energy of a photon of green light with a frequency of 5.80 x 10^14/s

Chemistry
1 answer:
dedylja [7]4 years ago
8 0
I'm not understanding that much. but if i'm right the answer is <span>3.84 x 10^-19 J</span>
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The Haber-Bosch process operates at reaction pressures of 200.0
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Which of the following statements about the greenhouse effect is false?
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A 47.0 mL aliquot of a 0.400 M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water shou
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Explanation:

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6.5 Moles of Al reacts with 7.2 Moles of H2O What is the limiting reactant and calculate the Theoretical Yield?
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Answer:

H₂O is the limiting reactant

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Find how many moles of one reactant is needed to completely react with the other.

6.5 mol Al × (3 mol H₂O / 2 mol Al) = 9.75 mol H₂O

We need 9.75 mol of H₂O to completely react with 6.5 mol of Al.  But we only have 7.2 mol of H₂O.  Therefore, H₂O is the limiting reactant.

Now find the theoretical yield:

7.2 mol H₂O × (1 mol Al₂O₃ / 3 mol H₂O) × (102 g Al₂O₃ / mol Al₂O₃) ≈ 240 g Al₂O₃

7.2 mol H₂O × (3 mol H₂ / 3 mol H₂O) × (2 g H₂ / mol H₂) ≈ 14 g H₂

Since the data was given to two significant figures, we must round our answer to two significant figures as well.

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