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deff fn [24]
2 years ago
15

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water

Chemistry
1 answer:
Agata [3.3K]2 years ago
5 0

9.98 g of NH₃ reacts with 23.4 g of O₂ (up to 3 significant figure).

<h3>What is Significant figures ?</h3>

The digits of a number that are used to express it to the required degree of accuracy, starting from the first non-zero digit.

The given chemical equation ;

4NH₃ + 5O₂ ---> 4NO + 6H₂O

Therefore,

4 moles of NH₃ reacts with 5 moles of O₂.

i.e,

68 g of NH₃ reacts with 160g of O₂.

Therefore,

9.98 g of NH₃ reacts with :

      = 160/68 x 9.98

      = 23.4 g of O₂ (up to 3 significant figure)

Learn more about Significant figures here ;

brainly.com/question/13386983

#SPJ1

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Find the mass of oxygen in grams produced by the decomposition of 100.0 g of CO2
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The balanced chemical equation is :

2CO_2->2CO+O_2\\\\

Moles of CO_2 ,

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Now, by given chemical equation , we can see 2 mole of CO_2 react with 1 mole of O_2.

So , 2.27 mole react with :

N=\dfrac{2.27}{2}\ mol\\\\N=1.135\ mol

Mass of oxygen is :

M = N \times 16\\\\M=1.135\times 16\ g\\\\M =18.16\ g

Therefore, mass of oxygen in grams produced is 18.16 g.

Hence, this is the required solution.

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Explanation:

<em>I hope this helps</em>

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