Why filter a Nearly Saturated Solution of Ca(OH)2

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In summary, the purpose of filtering the nearly saturated solution of Ca(OH)2 is to remove any remaining undissolved calcium hydroxide. The filter paper is used to capture the solid particles, and it is expected that some of the solution will be lost in the process. This is done in order to prevent any calcium carbonate from forming in the filtered solution. It is not necessary for all of the solution to pass through the filter paper, as long as the undissolved particles are removed.
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fporejfpoer
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From a lab I am about to do:

"Pour 25.0 mL of nearly saturated solution of Ca(OH)2 into filter paper"

I am wondering why I would need to filter the solution (what a filter paper would capture). Isn't filter paper just good for removing solids. It is not even expected that all solution will pass through, only 15-20 mL. Why?
 
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How are you expected to treat or handle the filtered solution? My guess is that you are filtering any calcium carbonate and want to take actions to prevent any calcium carbonate from forming in the filtered solution.
 
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But why would filter paper separate out a dissolved substance? Don't filters just block solids or something?
 
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fporejfpoer said:
But why would filter paper separate out a dissolved substance? Don't filters just block solids or something?

Yes, that'd normally be the point.

It's natural that you're going to loose some solution in the process of filtering. Wetting the filter.
It'd be easier to say what the exact purpose was if we knew the context. But my best guess on the information given is that since it's near-saturated you're trying to get rid of any eventual remaining undissolved calcium hydroxide.
 

FAQ: Why filter a Nearly Saturated Solution of Ca(OH)2

Why is it necessary to filter a Nearly Saturated Solution of Ca(OH)2?

Filtering a Nearly Saturated Solution of Ca(OH)2 is necessary because it helps to remove any impurities or solid particles that may be present in the solution. This ensures that the solution is pure and can be used for further experiments or applications without interference from any contaminants.

What happens if you do not filter a Nearly Saturated Solution of Ca(OH)2?

If a Nearly Saturated Solution of Ca(OH)2 is not filtered, the impurities or solid particles present in the solution can affect the accuracy and reliability of any experiments or applications that use the solution. These impurities can also cause unwanted reactions or changes in the solution, making it unsuitable for use.

How do you filter a Nearly Saturated Solution of Ca(OH)2?

To filter a Nearly Saturated Solution of Ca(OH)2, you will need a filter paper, funnel, and a clean container. Place the filter paper in the funnel and wet it with a small amount of the solution. Pour the solution through the filter paper and into the container, allowing the impurities to be trapped in the filter paper. Repeat the process if necessary until the solution is clear.

Can you use any type of filter to filter a Nearly Saturated Solution of Ca(OH)2?

No, it is important to use a filter paper specifically designed for laboratory use when filtering a Nearly Saturated Solution of Ca(OH)2. These filter papers have a specific pore size and are made of materials that are chemically inert, ensuring that they do not react with the solution or introduce any additional impurities.

Is there a specific time frame for filtering a Nearly Saturated Solution of Ca(OH)2?

The time frame for filtering a Nearly Saturated Solution of Ca(OH)2 may vary depending on the amount of solution and the level of saturation. However, it is recommended to filter the solution as soon as possible to prevent any unwanted reactions or changes in the solution. Additionally, the longer the solution sits, the more likely it is for impurities to settle, making it more difficult to filter effectively.

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