# Answer to Question #33015 in Organic Chemistry for savin

Question #33015

acetylene burn in air forming carbon di-oxide and water vapour calculate the volume of air required to completely burn 50 cm cube

Expert's answer

C

Burning of 1 mole of C

That means 2.5 x 50 cm

Let total air required is = M

20% of air = 125 cm

20 M/100 = 125 cm

M = 125 cm

_{2}H_{2}+ 5/2O_{2}----------------> 2CO_{2}+ H_{2}OBurning of 1 mole of C

_{2}H_{2}requires 2.5 mole O_{2}That means 2.5 x 50 cm

^{3}= 125 cm^{3}O_{2}Let total air required is = M

20% of air = 125 cm

^{3}O_{2}20 M/100 = 125 cm

^{3}O_{2}M = 125 cm

^{3}x 100/20 = 625 cm^{3}

Answer: 625 cmAnswer: 625 cm

^{3}
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