Answer to Question #66860 in General Chemistry for Amparo

Question

Gallium arsenide (GaAs) is an important compound to the electronics industry. It is produced in the following reaction between arsine (AsH3) and trimethyl gallium (Ga(CH3)3) :
AsH3 (g) + Ga(CH3)3 (g) --> GaAs (s) + 3 CH4 (g)
If this reaction is initiated at 750C between 1.00 atm of Ga(CH3)3 and 1.00 atm of AsH3 in a rigid 1L vessel, and 1.00 x 10–5 mol of AsH3 is left to dispose of at the end of the reaction, what is the equilibrium constant, KP?