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1SCIENCETest 2: Passage 5

Paper chromatography can be used to identify metal ions in wastewater. A drop of sample solution is placed on filter paper. The bottom of the paper is set in a solvent that travels up the paper (see Figure 1).

The solvent carries the ions up the paper. Some ions move faster, and therefore farther than others, resulting in a separation as they move up the paper. The paper is dried, then stained, causing the ions to appear as colored spots. Rf values are calculated for each spot:

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Table 1 shows Rf values for 5 ions. Table 2 shows Rf values from 3 samples of wastewater. The same solvent was used for all ions and samples.

Table 1 adapted from Thomas McCullough, CSC, and Marissa Curlee, "Qualitative Analysis of Cations Using Paper Chromatography." 1993 by the American Chemical Society.

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Table 1 shows Rf values for 5 ions. Table 2 shows Rf values from 3 samples of wastewater. The same solvent was used for all ions and samples.

Table 1 adapted from Thomas McCullough, CSC, and Marissa Curlee, "Qualitative Analysis of Cations Using Paper Chromatography." 1993 by the American Chemical Society.

4Copper

Table 1 shows Rf values for 5 ions. Table 2 shows Rf values from 3 samples of wastewater. The same solvent was used for all ions and samples.

Table 1 adapted from Thomas McCullough, CSC, and Marissa Curlee, "Qualitative Analysis of Cations Using Paper Chromatography." 1993 by the American Chemical Society.

5----- 6.0 ----Copper26.The information in Tables 1 and 2 supports the conclusion that Sample 3 contains: 1. Cu2+ and Cd2+ only.2. Co2+ and Hg2+ only.3. Ni2+, Co2+, and Cd2+ only.4. Ni2+, Cd2+, and Hg2+ onlyPassage 5 Questions6

26.The information in Tables 1 and 2 supports the conclusion that Sample 3 contains: 1. Cu2+ and Cd2+ only.2. Co2+ and Hg2+ only.3. Ni2+, Co2+, and Cd2+ only.4. Ni2+, Cd2+, and Hg2+ onlyPassage 5 Questions7

26.The information in Tables 1 and 2 supports the conclusion that Sample 3 contains: 1. Cu2+ and Cd2+ only.2. Co2+ and Hg2+ only.3. Ni2+, Co2+, and Cd2+ only.4. Ni2+, Cd2+, and Hg2+ onlyPassage 5 Questions8

26.The information in Tables 1 and 2 supports the conclusion that Sample 3 contains: 1. Cu2+ and Cd2+ only.2. Co2+ and Hg2+ only.3. Ni2+, Co2+, and Cd2+ only.4. Ni2+, Cd2+, and Hg2+ onlyPassage 5 Questions9

28. Based on the information in Table 1, which of the following lists the metal ions in order from the fastest to slowest speed with which they moved up the paper? 1. Hg2+, Cd2+, Cu2+, Co2+, Ni2+2. Cd2+, Cu2+, Co2+, Hg2+, Ni2+3. Ni2+, Hg2+, Co2+, Cu2+, Cd2+4. Ni2+, Co2+, Cu2+, Cd2+, Hg2+

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28. Based on the information in Table 1, which of the following lists the metal ions in order from the fastest to slowest speed with which they moved up the paper? 1. Hg2+, Cd2+, Cu2+, Co2+, Ni2+2. Cd2+, Cu2+, Co2+, Hg2+, Ni2+3. Ni2+, Hg2+, Co2+, Cu2+, Cd2+4. Ni2+, Co2+, Cu2+, Cd2+, Hg2+

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29.Based on the information in Table 2, which of the following figures best illustrates the appearance of the filter paper after Sample 1 was analyzed?

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29.Based on the information in Table 2, which of the following figures best illustrates the appearance of the filter paper after Sample 1 was analyzed?

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29.Based on the information in Table 2, which of the following figures best illustrates the appearance of the filter paper after Sample 1 was analyzed?

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29.Based on the information in Table 2, which of the following figures best illustrates the appearance of the filter paper after Sample 1 was analyzed?

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-----------60-----------------------78-------------29.Based on the information in Table 2, which of the following figures best illustrates the appearance of the filter paper after Sample 1 was analyzed?

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-----------60-----------------------78-------------30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions17

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions18

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions19

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions20

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions21

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions22

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions23

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions24

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions25

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions26

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions27

30. Based on the information in Table 1, to best identify a metal ion using paper chromatography, one should know the: 1. spot color for the ion only.2. distance the solvent traveled only.3. Rf value and spot color for the ion only.4. distance the solvent traveled and spot color of the ion only.Passage 5 Questions28

29SCIENCEEnd of Test 2: Passage 5