1.

A closed bulb cotains 0.01 mole of inert helium gas and a sample of solid white NH_(4)CI The pressure of the he is measured at 27^(@)C and is found to be 114 mm Hg The bulb is then heated to 327^(@)C All the NH_(4)CI decomposes according to the equation NH_(4)CI_((s))rarrNH_(3_(g)) +HCI_((g)) The final total pressure in the bulb after complete decomposition of solid is 908mm Hg Assume all the gases are ideal (a) What is the partial pressure of HCI_((g)) in the bulb at 327^(@)C when reaction is complete (b) How many grams of NH_(4)CI_((s)) were in the bulb at 27^(@)C ? .

Answer»


ANSWER :0.447 ATM, 0.797 G


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