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Oxidation States

Air contains ...

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Air contains 20 percent O2 by volume. How many cc of air will be required for oxidation of 100 cc of acetylene.

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Q. Air contains

20

percent oxygen by volume. Calculate the theoretical volume of air which will be required for burning

200 m^{3}

of acetylene gas completely. All volumes are measured under the same conditions of temperature and pressure.

Q. Air contains nearly 20% oxygen by volume. The volume of air needed for complete combustion of 100 ml of acetylene will be :

Q. What volume of air (containing 20%

O_{2}

by volume) will be required to burn completely

10 c m^{3}

each of methane and acetylene.

C H_{4} + 2 O_{2} ⟶ C O_{2} + 2 H_{2} O

2 C_{2} H_{2} + 5 O_{2} ⟶ 4 C O_{2} + 2 H_{2} O

[C_{2} H_{2}]

burns in air forming carbon dioxide and water vapour. Calculate the volume of air required to completely burn

50 c m^{3}

of acetylene (Assume air contains 20 % oxygen):

Q. Under constant temperature and pressure

50 ml

of gaseous mixture of acetylene and ethylene if taken in a ratio of

a : b

700 ml

of air containing

20 %

O_{2}

for complete combustion. Calculate the volume of air required for complete combustion of a mixture having ratio

b : a

at same conditions of temperature and pressure.

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