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Q 2686212177.     (a) The degree of dissociation is `0.4` at `400` K and `1.0` atm for
the gaseous reaction `PCl_ 5 ⇋ PCl_3 + Cl_2`. Assuming
ideal behaviour of all the gases, calculate the density of
equilibrium mixture at `400` K and `1.0` atm (relative atomic
mass of `P = 31.0` and `Cl = 35.5` ).
(b) Given, `[Ag(NH_3)_2^+ ⇋ Ag^+ +2 NH_3`
`K_e=6.2 xx 10^(-8)` and `K_(sp)` of `AgCl`
`=1.8 xx 10^(-10)` at `298 K`
If ammonia is added to a water solution containing excess of `AgCl(s)` only. Calculate the concentration of the complex in
`1.0` M aqueous ammonia.
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)