- #1

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Here are some of the questions

1. If 2.6 moles of P

_{4}and 3.6 moles of H

_{2}are reacted till the following equilbirum is established P

_{4}+ 6H

_{2}<===> 4PH

_{3}, and if at equilbrium 1.6 moles of PH

_{3}are formed, how many moles of P

_{4}and H

_{2}are in the equilibrium mixture?

(I got .4 and 2.4)

2. At 2000C k=6.2 x 10^-4 for the system N

_{2}+ O

_{2}<==> 2NO. How many moles of N

_{2}will exist in equilbrium in a 50 Liter box with .0062 mole of O

_{2}and .0010 mole of NO?

(I got .258 mole)

3. If for the system NH

_{4}Cl (s) <=====> NH

_{3}(g) + HCl (g) K=1.0 x 10^-4 . Find the moles of NH

_{3}in a 100 liter container if initially there were 10.0 moles of NH

_{3}added to 10 moles of HCl?

(I got .1)