SolutionHard

Question

Which relations are not correct for an aqueous dilute solution of K3PO4 if its degree of dissociation is α ?

Options

A.
B.
C.
D.Mw of K3PO4 = Mwobs ×  (1 + 3α)

Solution


For electrolyte  × (1 + 3α)
                            (Mw1 = 18 for H2O)
Also, pobs = C ×  R ×  T (1 + 3α)
∴   
ᐃTf obs = Kf × molality × (1 + 3α)
 
i = (1 + 3α) =
Therefore, molecular weight of K3PO4 = Mobs × (1 + 3α)

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