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The reaction of hydrogen with nitrogen to produce ammonia is shown below.If there are 12 moles of hydrogen, how many moles of nitrogen are needed toreact completely with the hydrogen?N2(9) + 3H2(9) ► 2NH3(9)O A. 3B. 6C. 4.O D. 36

Sagot :

Answer

C. 4

Explanation

Given:

[tex]N_{2(g)}+\text{ 3H}_{2(g)}\rightarrow2NH_{3(g)}[/tex]

Moles of hydrogen = 12 moles

Required: Moles of nitrogen

Solution

Use the stoichiometry to find the moles of nitrogen

The molar ratio between hydrogen and nitrogen is 3:1

Therefore the moles of N2 = 12 moles x (1/3) = 4 moles

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