Answer: 224 grams
Explanation:
2H2 + O2 = 2H2O
This implies that 2 moles of oxygen is needed to react with one mole of oxygen to form 2 moles of water
It also implies that
2 moles of hydrogen requires 32 grams of oxygen
14 moles of hydrogen would require ? grams of oxygen
14/2 x 32 = 224 grams
Answer:
6. C3H2O
Explanation:
C= 12.0107; H= 1.00797; O=15.9994
We calculate:
C= 65.85/12.01=5.48
H= 4.91/1.00=4.91
O=29.24/16.00= 1.82
Later, we divide among the smaller quantity
C=5.48/1.82= 3.01
H=4.91/1.82= 2.70
O=1.82/1.82=1
The standard enthalpy of formation (Δ
) is a measure of the energy released or consumed when one mole of a substance is created under standard conditions from its pure elements.
Standard enthalpies (Δ) of formation for given reaction is 978.3 kJ
<h3>
What is Standard enthalpies of formation?</h3>
The standard enthalpy of formation is defined as the enthalpy change when one mole of a substance in the standard state (1 atm of pressure and 298.15 K) is formed from its pure elements under the same conditions.
Given reaction ;
To Find : Δ
Δ = ∑np Δ (products) – ∑np Δ (reactants)
Δ = [1(Δ 
) + 4(Δ 
)] – [1(Δ 
) + 4(Δ 
)]
Δ = [1(0) + 4(-241.8)] – [1(+9.16) + 4(0)]
Δ = [4(-241.8)] – [1(+9.16)] = 978.3 kJ
Learn more about Enthalpy here ;
brainly.com/question/16720480
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Answer: The volcanic eruptions started and the comet or asteroid that was a fatal hit had a run-in with the dinosaurs.
I know that this was 6 days ago but you might have to include a picture or write a full sentence in order to get answers.
