Models of Matter A.1 Introduction to the Particulate Nature of Matter (id: bfeb4

本题目来源于试卷: Models of Matter A.1 Introduction to the Particulate Nature of Matter，类别为 IB化学

[填空题]
Biological dyes contaminated a 6; blfyn. +rzuwxw,b5 cxp7uetvh3a + . 0mhr8local pond. These dyes are known to be soluble solids. A sample of the polluted pond water was collected for separation and further irmp0 u+87 hhvx3eact.dentification of the dyes to determine how best to remediate the area.


1.State whether this mixture is  ----待选择----homogeneousheterogeneous , explaining your answer.
2.State the technique that could be used to remove the wood chips, algae, and plant matter from the mixture.
3.State the technique that could be used to isolate the dissolved solids (salts, dyes, etc) from the water.  
4.State the technique that could be used to separate the salts from the dyes.  
5.Explain the properties of the substances that enable their separation in question (d).
6.Once the dyes have been separated from the remainder of the sample, paper chromatography could be used to determine how many dyes are present. State the identity of the stationary phase and an example of a mobile phase.
7.From the following paper chromatogram, state which dye  ----待选择----AB  has a greater affinity for the mobile, describing the evidence to support this answer.

参考答案:
空格1: heterogenous  空格2: evaporation  空格3: recrystallization  空格4: A 


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