4) One of the most important chemical reactions is the Haber process, in which N

Question

4)  One of the most important chemical reactions is the Haber process, in which N2 and H2 are converted to ammonia which is used in the production of fertilizers.  Consider that you have just produced 170 g of NH3 in a 50.0 L tank at 400.0 C.  What was the total pressure of the gases that reacted to produce this ammonia?

                                    N2(g)   +  3 H2(g)   ---->  2 NH3(l)

            a)  221             b) 13               c)  22               d)  11               e)   5.5

Explanation / Answer

p=nRT/V

n=wt/M.wt =170/17=10

P=10*0.0821*(400+273)/50

=11.051 atm

total pressure = 11.051 atm

option D is correct

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