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` ? .
