Which samples were pure and which were mixtures?
How many different component compounds are in each mixture and what colour are they?
Are there two different coloured ink samples that contain a common component?
( ALL THESE QUESTIONS ARE RELATED TO THE COLOUR CHROMOTAGRAPHY EXPERIMENT)
i think if the colour didnt change then its pure, and if colours changed a lot then its mixture.. im not sure though. You will have to wait for drbob
Tutors here are not clairvoyant. I have no idea what you are doing other than that it is a chromatography experiment
DrBob, you missed this class.
https://tse2.mm.bing.net/th?id=OIP.5x-xhxBm0LuLMmKKcZ0SQgDdEZ&pid=15.1&P=0&w=300&h=300
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To determine which samples were pure and which were mixtures, the question seems to refer to a color chromatography experiment. In this experiment, various samples, likely different types of ink, were tested to see if they are pure substances (containing only one type of compound) or mixtures (containing multiple compounds).
To answer these questions and understand the results of the experiment, you would need to perform color chromatography. Here's a step-by-step explanation of how to conduct this experiment and obtain the required information:
1. Prepare the samples: Take the ink samples you want to test and put a small dot of each ink onto a piece of chromatography paper. Make sure to label each dot with the corresponding ink sample.
2. Set up the chromatography chamber: Take a glass jar or a beaker and pour a small amount of a mobile phase or solvent into it. Common solvents, such as water or isopropyl alcohol, can be used. The solvent should be deep enough so that the bottom of the paper touches the liquid but does not fully submerge.
3. Place the chromatography paper: Once the chamber is ready, attach a clip or use a rubber band to hang the chromatography paper vertically inside the jar or beaker so that the bottom tip of the paper touches the solvent.
4. Observe the separation: As the solvent moves up the paper due to capillary action, it will begin to separate the ink components. Different compounds in the inks will have different solubilities and will move at different rates. This will result in colored bands or spots along the paper.
5. Analyze the results: Once the solvent has reached a desired height or the separation is sufficient, remove the paper from the chamber. The different bands or spots on the paper represent separate components in the ink samples.
Now let's try to answer the specific questions based on the results of the experiment:
1. Pure vs. mixture: Look for samples that have only one visible band or spot on the paper. These samples contain only one component, making them pure. If there are multiple bands or spots of different colors, these samples are mixtures.
2. Number of component compounds: Count the number of distinct bands or spots on the paper for each mixture sample. Each band or spot represents a different component compound present in the ink mixture.
3. Common component between colored inks: Compare the colors of the ink samples' bands or spots. If there are two different colored inks that have a band or spot of the same color, it suggests that they share a common component.
By following these steps and analyzing the chromatography paper's results, you can determine which samples are pure and which are mixtures, count the number of component compounds in each mixture, and identify any common components between colored inks.