Question

4. Rank the following solutions by increasing boiling point (or decreasing freezing point). Note: Some solutions may have the same boiling points. Indicate when boiling points are the same 1.0 M NaCl, 1.0 M CH20., 1.0 M NaNO3, 1.0M CaCl, 10 M Ca(NO3)2, 2.0 M C6H12O6, 2.0 M NaCl, 2.0 M CaCl2

Answer 1

solution having same i*m value have same boiling point.

ATb Kbm 1 T-elevatiom d beiling poin Vant' Hoft facto K Molal ele vation constamt molality 2m value mene cuitl be bailizg pont (ordecraage in fheeting pan Solutionhauing the eleration Cixm) 1(M)Nact 1 x2-2 mare NacNatt i 2 1 (M)GtH120 1x1 -1 Cc 206i3 not ionisalble 1 CM) NaND2 =7 1 x2-2 Nand3 Nat+No :i2 1 (M) cacle 7 1x 3-3 Cac2Cat + 2c 7 3 1 x 3 3 1(M) Ca(NO3)2 Ca(NO2Ca+2N 3 2(M) GH12O = 2x12 GAH206 iat iomisable 2 (M) Nau =72x2 =4 NacuNat ta 2 2 2 (M) Caclh 2 x3 = CaczCa +2c so increaning order boiling pont-in an fellns 1 (M) G H206 1 (M) Nad = 1 (M) Na NU3 = 2M) He0 1 (M) Cac2 = 1(M) Ca(N0)2< 2M)Nac 2 (M) Cac

Here molarity and molality are almost same.