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1、原始数据:温度:14.5 dH2O=0.998173g/cm3 M苯=78.11g/mol M三氯甲烷=145.5 C空=4.82样品号0(纯苯)123三氯甲烷摩尔分数(X2)00.009270.05040.1503空瓶的质量(g1)10.663412.999912.00379.9513充满水的质量(g2)20.713924.884324.522219.8855充满待测样品的质量(g3)19.501923.614323.433119.5889折射率(n12)1.5031.5011.49781.4939电容值C128.428.568.759.2数据处理:样品号0(纯苯)123三氯甲烷摩尔分数(X
2、2)0.0000 0.0093 0.0504 0.1503 密度(d12)d=dH2o*(g3-g1)/(g2-g1)0.8787 0.8923 0.9122 0.9693 介电常数122.2934 2.3437 2.4120 2.5737 溶剂的介电常数1=d12/(1+X2)2.2934 2.3271 2.3222 2.3075 溶剂的密度d1=d12/(1+X2)0.8787 0.8869 0.8830 0.8822 溶剂的折射率n1=n12/(1+X2)1.5030 1.5015 1.5006 1.5022 P2,43.3994 43.1202 42.0593 39.4784 R2,3
3、1.4931 28.9040 25.4350 25.5098 0.7491 0.8185 0.8851 0.8114 介电常数的计算:(苯)=2.283-0.00190(t-20)=2.283-0.00190(14.520)=2.29345Cd=【(标)C(空)C(标)】/【(标)1】而该实验以苯作为标准物质,因此(苯)=(标)=2.29345,代入上式,可得Cd=(2.293454.82-8.42)/(2.29345-1)=2.0367再根据公式:介电常数(液)=C(液)/C(空)=【C(液)Cd】/【 C(空)Cd】可得各样品介电常数由图可解得:=0.7674 =0.6567 =-0.03
4、66实验2原始数据:温度:14.5(287.65K) 样品空管亚铁氰化钾硫酸亚铁铵硫酸亚铁硫酸铜W122.114335.360136.154336.42140.291W222.113535.357536.272136.56940.318W322.113835.357736.271836.569740.318W422.115335.360536.154936.421540.291样品高度h/m00.1480.1470.150.148摩尔质量Kg/mol00.422390.392140.278020.2497W(0)22.114835.360336.154636.4212540.291W(0.35T)22.113735.357636.271636.569440.318样品质量13.245514.039814.3064518.176