现有相同的比色皿分别在475nm和670nm处,测定了三种溶液的吸光度,(1)含有化合物a,(2)含有化合物b,(3)含有化合物a和b的混合溶液。有关数据如下: 计算a和b的含量分别是多少? 化合物 浓度 /mol/L A ( 475nm ) A ( 670nm ) a 0.001 0.90 0.20 b 0.01 0.15 0.65 a 和 b --- 1.65 1.65
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