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alina1380 [7]
3 years ago
9

If 18.0 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and

Chemistry
1 answer:
Tanya [424]3 years ago
5 0

Answer:

3.68 g

Explanation:

n_{CO2} = 18 ÷ 44 = 0.4

2C2H2 + 5O2 → 4CO2 + 2H2O

   2       :    5      :    4      :    2  

                             0.409                 (moles)

⇒ n_{H2O} = 0.409 × 2 ÷ 4 = 0.2045 moles

⇒ m_{H2O} = 0.2045 × 18 = 3.68 grams

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