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What volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at...

Chemistry
WAEC 2001
What volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at constant temperature and pressure? The equation for the reaction is 2NH3(g) → N2(g) + 3H2(g)
  • A. 50cm3
  • B. 150cm3
  • C. 200cm3
  • D. 300cm3
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Correct Answer: Option B
Explanation
According to the equation 2NH3 → N2 + 3H2 2x22400cm 3 of ammonia will produce 3x22400cm 3 of hydrogen if 100cm3 of NH3 is used H2 volume = 100/2x22400 x 3 x22400 = 150cm3
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