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Shtirlitz [24]
2 years ago
10

The combustion of a sample of butane, C4H10, produced 2.46 grams of water.

Chemistry
1 answer:
djverab [1.8K]2 years ago
8 0

Answer:

(A) 0.14 moles water formed.

(B) 0.03 moles butane burned

(C) 5.7 grams of butane burned

(D) 0.18 moles of oxygen was used up in the reaction.

Explanation:

(A)

The given chemical reaction is as follows.

The number of water molecules in the reaction = 10

2C_{4}H_{10}+13O_{2}\rightarrow 8CO_{2}+10H_{2}O

\frac{2.46g}{10(18)}=\frac{xH_{2}O}{10H_{2}O}= 0.14

Therefore, 0.14 moles water formed.

(B)

Molarmass of butane = 180 g

The number of butane molecules in the reaction = 2

\frac{2.46g}{180}=\frac{xC_{4}H_{10}}{2C_{4}H_{10}}= 0.03

Therefore, 0.03 moles butane burned

(C)

Molar mass of oxygen = 32g/mol

The number of water molecules in the reaction = 10

The number of oxygen molecules in the reaction = 13

\frac{2.46g}{10(18)}=\frac{xO_{2}}{13(32)}= 5.7g

Therefore, 5.7 grams of butane burned

(D)

Molar mass of oxygen = 32 g/mol

Used amount of oxygen in the reaction = 5.7 g

\frac{5.7}{32}=0.18

Therefore, 0.18 moles of oxygen was used up in moles.

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