0.025mol.L-1某一元酸溶液的凝固点为-0.060℃,求此酸的 Kθa。(Kf=1.86K.kg.mol-1)
正确答案:
△Tf=Kf*bB,
HAC→←H++AC-
起始0.025,0,0
平衡0.025-x,x,x
CB=bBP=△Tf/Kf
P水=0.06/1.56*1=0.0323
Kaθ=(0.0323-0.025)2/[0.025-(0.0323-0.025)]
=3*10-3
HAC→←H++AC-
起始0.025,0,0
平衡0.025-x,x,x
CB=bBP=△Tf/Kf
P水=0.06/1.56*1=0.0323
Kaθ=(0.0323-0.025)2/[0.025-(0.0323-0.025)]
=3*10-3
答案解析:有
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