The first table gives paper chromatography results for five known ions. The second table shows the R f values and spot colors for three samples of waste water. lon Molar mass ( g mol - 1 ) Distance travelled ( cm ) R f Color of spot Nickel, Ni 2 + 58 . 7 0 . 8 0 . 08 Pink Cobalt, Co 2 + 58 . 9 3 . 5 0 . 35 Brown-black Copper, Cu 2 + 63 . 5 6 . 0 0 . 60 Blue Cadmium, Cd 2 + 112 . 4 7 . 8 0 . 78 Yellow Mercury, Hg 2 + 200 . 6 9 . 5 0 . 95 Brown-black Sample R f value Color of spot 1 0 . 60 0 . 78 Blue Yellow 2 0 . 35 0 . 95 Brown-black Brown-black 3 0 . 08 0 . 78 0 . 95 Pink Yellow Brown-black Identify the ions present in Sample 2 .

In sample 2 , the first R f value of 0 . 35 and color of the spot black-brown corresponds to the metal ion cobalt Co 2 + and the second R f value of 0 . 95 and color of the spot black-brown corresponds to the metal ion mercury Hg 2 + .

The first table gives paper chromatography results for five known ions. The second table shows the R f values and spot colors for three samples of waste water. lon Molar mass ( g mol - 1 ) Distance travelled ( cm ) R f Color of spot Nickel, Ni 2 + 58 . 7 0 . 8 0 . 08 Pink Cobalt, Co 2 + 58 . 9 3 . 5 0 . 35 Brown-black Copper, Cu 2 + 63 . 5 6 . 0 0 . 60 Blue Cadmium, Cd 2 + 112 . 4 7 . 8 0 . 78 Yellow Mercury, Hg 2 + 200 . 6 9 . 5 0 . 95 Brown-black Sample R f value Color of spot 1 0 . 60 0 . 78 Blue Yellow 2 0 . 35 0 . 95 Brown-black Brown-black 3 0 . 08 0 . 78 0 . 95 Pink Yellow Brown-black Identify the ions present in Sample 3 .

In sample 3 , the first R f value of 0 . 08 and color of the spot pink corresponds to the metal ion nickel Ni 2 + , the second R f value of 0 . 78 and color of the spot yellow corresponds to the metal ion cadmium Cd 2 + , and the third R f value of 0 . 95 and color of the spot black-brown corresponds to the metal ion mercury Hg 2 + .

The first table gives paper chromatography results for five known ions. The second table shows the R f values and spot colors for three samples of wastewater. lon Molar mass ( g mol - 1 ) Distance travelled ( cm ) R f Color of spot Nickel, Ni 2 + 58 . 7 0 . 8 0 . 08 Pink Cobalt, Co 2 + 58 . 9 3 . 5 0 . 35 Brown-black Copper, Cu 2 + 63 . 5 6 . 0 0 . 60 Blue Cadmium, Cd 2 + 112 . 4 7 . 8 0 . 78 Yellow Mercury, Hg 2 + 200 . 6 9 . 5 0 . 95 Brown-black Sample R f value Color of spot 1 0 . 60 0 . 78 Blue Yellow 2 0 . 35 0 . 95 Brown-black Brown-black 3 0 . 08 0 . 78 0 . 95 Pink Yellow Brown-black Analyse the data and list the ions in the first table from the fastest to the slowest.

The coloured component that is more soluble in water, rises faster and gets separated out first. Therefore, the list the ions in the first table from the fastest to the slowest is: Ni 2 + , Co 2 + , Cu 2 + , Cd 2 + , Hg 2 +

The first table gives paper chromatography results for five known ions. The second table shows the R f values and spot colors for three samples of waste water. lon Molar mass ( g mol - 1 ) Distance travelled ( cm ) R f Color of spot Nickel, Ni 2 + 58 . 7 0 . 8 0 . 08 Pink Cobalt, Co 2 + 58 . 9 3 . 5 0 . 35 Brown-black Copper, Cu 2 + 63 . 5 6 . 0 0 . 60 Blue Cadmium, Cd 2 + 112 . 4 7 . 8 0 . 78 Yellow Mercury, Hg 2 + 200 . 6 9 . 5 0 . 95 Brown-black Sample R f value Color of spot 1 0 . 60 0 . 78 Blue Yellow 2 0 . 35 0 . 95 Brown-black Brown-black 3 0 . 08 0 . 78 0 . 95 Pink Yellow Brown-black Sketch the appearance of the chromatography paper of sample 1 after the analysis has been completed.

The sketch of the chromatography paper of sample 1 is shown below, with a blue dot positioned 6 cm from the baseline and a yellow dot positioned 7 . 8 cm from the baseline.

The first table gives paper chromatography results for five known ions. The second table shows the R f values and spot colors for three samples of waste water. lon Molar mass ( g mol - 1 ) Distance travelled ( cm ) R f Color of spot Nickel, Ni 2 + 58 . 7 0 . 8 0 . 08 Pink Cobalt, Co 2 + 58 . 9 3 . 5 0 . 35 Brown-black Copper, Cu 2 + 63 . 5 6 . 0 0 . 60 Blue Cadmium, Cd 2 + 112 . 4 7 . 8 0 . 78 Yellow Mercury, Hg 2 + 200 . 6 9 . 5 0 . 95 Brown-black Sample R f value Color of spot 1 0 . 60 0 . 78 Blue Yellow 2 0 . 35 0 . 95 Brown-black Brown-black 3 0 . 08 0 . 78 0 . 95 Pink Yellow Brown-black What do you observe about the relationship between the molar mass and the retention factor?

It can be observed from the data in the first table that a higher molar mass ion is travelling a greater distance and getting separated. This means, that a larger molar mass ion has a greater retention factor.

Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question

Author:Gary Horner

Gary Horner Chemistry Solutions for Exercise - Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question

Attempt the practice questions on Chapter 7: Function, Exercise 10: Data-based question with hints and solutions to strengthen your understanding. MYP Chemistry A concept-based approach Years 4&5 solutions are prepared by Experienced Embibe Experts.

Questions from Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question with Hints & Solutions

EASY

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 7 - Function>Data-based question>Q 1

The first table gives paper chromatography results for five known ions. The second table shows the $R_{f}$ values and spot colors for three samples of waste water.

lon	Molar mass ( $g {mol}^{- 1}$ )	Distance travelled ( $cm$ )	$R_{f}$	Color of spot
Nickel, $0.95$	$58.7$	$0.8$	$0.08$	Pink
Cobalt, ${Co}^{2 +}$	$58.9$	$3.5$	$0.35$	Brown-black
Copper, ${Cu}^{2 +}$	$63.5$	$6.0$	$0.60$	Blue
Cadmium, ${Cd}^{2 +}$	$112.4$	$7.8$	$0.78$	Yellow
Mercury, ${Hg}^{2 +}$	$200.6$	$9.5$	$0.95$	Brown-black

Sample	$R_{f}$ value	Color of spot
$1$	$0.60 0.78$	Blue Yellow
$2$	$0.35 0.95$	Brown-black Brown-black
$3$	$0.08 0.78 0.95$	Pink Yellow Brown-black

Identify the ions present in Sample $2$ .

EASY

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 7 - Function>Data-based question>Q 2

The first table gives paper chromatography results for five known ions. The second table shows the $R_{f}$ values and spot colors for three samples of waste water.

lon	Molar mass ( $g {mol}^{- 1}$ )	Distance travelled ( $cm$ )	$R_{f}$	Color of spot
Nickel, ${Ni}^{2 +}$	$58.7$	$0.8$	$0.08$	Pink
Cobalt, ${Co}^{2 +}$	$58.9$	$3.5$	$0.35$	Brown-black
Copper, ${Cu}^{2 +}$	$63.5$	$6.0$	$0.60$	Blue
Cadmium, ${Cd}^{2 +}$	$112.4$	$7.8$	$0.78$	Yellow
Mercury, ${Hg}^{2 +}$	$200.6$	$9.5$	$0.95$	Brown-black

Sample	$R_{f}$ value	Color of spot
$1$	$0.60 0.78$	Blue Yellow
$2$	$0.35 0.95$	Brown-black Brown-black
$3$	$0.08 0.78 0.95$	Pink Yellow Brown-black

Identify the ions present in Sample $3$ .

EASY

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 7 - Function>Data-based question>Q 3

The first table gives paper chromatography results for five known ions. The second table shows the $R_{f}$ values and spot colors for three samples of wastewater.

lon	Molar mass ( $g {mol}^{- 1}$ )	Distance travelled ( $cm$ )	$R_{f}$	Color of spot
Nickel, ${Ni}^{2 +}$	$58.7$	$0.8$	$0.08$	Pink
Cobalt, ${Co}^{2 +}$	$58.9$	$3.5$	$0.35$	Brown-black
Copper, ${Cu}^{2 +}$	$63.5$	$6.0$	$0.60$	Blue
Cadmium, ${Cd}^{2 +}$	$112.4$	$7.8$	$0.78$	Yellow
Mercury, ${Hg}^{2 +}$	$200.6$	$9.5$	$0.95$	Brown-black

Sample	$R_{f}$ value	Color of spot
$1$	$0.60 0.78$	Blue Yellow
$2$	$0.35 0.95$	Brown-black Brown-black
$3$	$0.08 0.78 0.95$	Pink Yellow Brown-black

Analyse the data and list the ions in the first table from the fastest to the slowest.

EASY

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 7 - Function>Data-based question>Q 4

The first table gives paper chromatography results for five known ions. The second table shows the $R_{f}$ values and spot colors for three samples of waste water.

lon	Molar mass ( $g {mol}^{- 1}$ )	Distance travelled ( $cm$ )	$R_{f}$	Color of spot
Nickel, ${Ni}^{2 +}$	$58.7$	$0.8$	$0.08$	Pink
Cobalt, ${Co}^{2 +}$	$58.9$	$3.5$	$0.35$	Brown-black
Copper, ${Cu}^{2 +}$	$63.5$	$6.0$	$0.60$	Blue
Cadmium, ${Cd}^{2 +}$	$112.4$	$7.8$	$0.78$	Yellow
Mercury, ${Hg}^{2 +}$	$200.6$	$9.5$	$0.95$	Brown-black

Sample	$R_{f}$ value	Color of spot
$1$	$0.60 0.78$	Blue Yellow
$2$	$0.35 0.95$	Brown-black Brown-black
$3$	$0.08 0.78 0.95$	Pink Yellow Brown-black

Sketch the appearance of the chromatography paper of sample $1$ after the analysis has been completed.

EASY

MYP:4-5

IMPORTANT

MYP Chemistry A concept-based approach Years 4&5>Chapter 7 - Function>Data-based question>Q 5

The first table gives paper chromatography results for five known ions. The second table shows the $R_{f}$ values and spot colors for three samples of waste water.

lon	Molar mass ( $g {mol}^{- 1}$ )	Distance travelled ( $cm$ )	$R_{f}$	Color of spot
Nickel, ${Ni}^{2 +}$	$58.7$	$0.8$	$0.08$	Pink
Cobalt, ${Co}^{2 +}$	$58.9$	$3.5$	$0.35$	Brown-black
Copper, ${Cu}^{2 +}$	$63.5$	$6.0$	$0.60$	Blue
Cadmium, ${Cd}^{2 +}$	$112.4$	$7.8$	$0.78$	Yellow
Mercury, ${Hg}^{2 +}$	$200.6$	$9.5$	$0.95$	Brown-black

Sample	$R_{f}$ value	Color of spot
$1$	$0.60 0.78$	Blue Yellow
$2$	$0.35 0.95$	Brown-black Brown-black
$3$	$0.08 0.78 0.95$	Pink Yellow Brown-black

What do you observe about the relationship between the molar mass and the retention factor?

Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question

Gary Horner Chemistry Solutions for Exercise - Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question

Questions from Gary Horner Solutions for Chapter: Function, Exercise 10: Data-based question with Hints & Solutions

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