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2 years ago

For the reaction given below, how many moles of nitrogen monoxide will form if we start with 2.0 moles of oxygen?

Chemistry

1 answer:

r-ruslan [8.4K]2 years ago

7 0

<h3>Answer: 1.6 mol (option 5)</h3>

Explanation:

Mole Ratio of O₂ : NO

Based on the balanced equation, the mole ratio of O₂ : NO is 5 : 4

∴ for every mole of O₂ reacted, ⁴/₅ moles of NO is produced

Moles of NO

since the number of mol of O₂ = 2.0 mol

then moles of NO produced = 2.0 mol × ⁴/₅

= 1.6 mol

∴ the moles of nitrogen monoxide that will form if we start with 2.0 moles of oxygen is 1.6 mol (option 5).

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nikitadnepr [17]

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Explanation:

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We can hence, frame a skeletal equation of this reaction and try to balance it.

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$FeSO4 \xrightarrow{\text{Heat}} SO_3+SO_2+Fe_2O_3$

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a)In order to balance it through the 'Hit &Trial Method', we'll follow a series of steps:

1. First, lets compare the number of Fe (Iron) atoms on the RHS and LHS. We find that, the no. of Fe Atoms on the RHS is twice the number of Fe Atoms on the LHS. We hence, add a co-effecient 2 beside $FeSO_4$ .

2. Now, Iron atoms, Sulphur Atoms and Oxygen atoms occur 2, 2, 8 respectively on both the sides:

Hence, As all the other elements as well as iron, balance, we've arrived upon our Balanced Equation :

$2FeSO4 \xrightarrow{\text{Heat}} SO_3+SO_2+Fe_2O_3$

b) We know that, decomposition reactions are [generally] endothermic reactions in which Large Compounds decompose into smaller elements and compounds. Here, as Ferrous Sulphate decomposes into Sulphur Dioxide, Sulphur Trioxide and Ferric Oxide, the reaction that occurs here is Decomposition Reaction.

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yanalaym [24]

Answer:

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2 years ago

When 0.230 g of sodium metal is added to an excess of hydrochloric acid, 2390 J of heat are produced. What is the enthalpy of th

Dmitriy789 [7]

Answer:

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Explanation:

Given data:

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Number of moles of sodium = mass / molar mass

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