Question

In the reaction shown, what is the mole ratio that would be used to determine the number of moles of oxygen needed to react with
3.2 moles of C4H10?
2 C4H10 + 13 0₂ →8 CO₂ + 10 H₂O
2 moles C4H10
3.2 moles 0₂
2 moles C4H10
13 moles 0₂
13 moles 0₂
2 moles C4H10
13 moles 02
3.2 moles C4H10
3.2 moles C4H10
13 moles 0₂
B
D
E)

Answer 1

The mole ratio to determine the number of moles of oxygen needed to react with 3.2 moles of C₄H₁₀ (Butane) will be 20.8 (O₂) : 3.2 (C₄H₁₀ )

What is Mole ratio ?

It is a conversion factor between compounds in a chemical reaction, that is derived from the coefficients of the compounds in a balanced equation.

The mole ratio is therefore used to convert between quantities of compounds in a chemical reaction.

According to the given chemical equation ;

2C₄H₁₀ + 13 0₂ → 8 CO₂ + 10 H₂O

2 moles of Butane (C₄H₁₀) consumes 13 moles OF O₂ therefore, 3.2 moles butane will consumes ;

Moles of 0₂ consumed by 3.2 moles butane = 13/2 x 3.2 = 20.8

Hence, The mole ratio to determine the number of moles of oxygen needed to react with 3.2 moles of C₄H₁₀ (Butane) will be 20.8 (O₂) : 3.2 (C₄H₁₀)

Learn more about mole ratio here ;

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