The pH where you might be able to precipitate as much Cu2 as possible will be any value that is less than 5.85.
<h3>How to illustrate the information?</h3>
The solubility product of salt is defined as the product of molar concentrations of ions in a saturated solution of it.
An ion will be precipitated if the ionic product exceeds the solubility product of the cation. In the case of Cu and Zn, the solubility product is greater for Zinc than Copper.
Also Cu will be precipitated in an acidic medium while Zn is precipitated in an alkaline medium. We have for CuS, K= S2 so S = 2.4495*10-8. For ZnS, S = 0.1414. So the lower the pH higher will be the amount of CuS precipitated.
If we are starting with 0.075M CuS and ZnS solution it will have 0.075 moles each of Cu2+, Zn2+, and S2. Since the anion concentration can be equated to POH, POH for Cus and Zns are 14.096 and 5.85.
The maximum precipitation will take place is any value which is less than 5.85.
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Argumentative writing is a type of writing that uses examples to support a claim.
<h3>What is Argumentative essay?</h3>
Argumentative essay/ writing is a genre of writing that requires one to a generate and evaluate a back up evidence after establishing a claim on a given topic in a concise manner.
In general, An argumentative essay should contain
- Supporting Body Paragraphs
- Persuasive Conclusion
- Transitional Phrase
An example of an argumentative essay is <em>Eating too many carbohydrates is the primary reason some people are overweight.</em>
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Based on the information given the number of acres that was harvested is 553 acres.
Using this formula
Number of acres=Number of bushels of grain harvested/Bushels per acre
Where:
Number of bushels of grain harvested=94,010 bushels
Bushels per acre=170
Let plug in the formula
Number of acres=94,010/170
Number of acres=553 acres
Inconclusion the number of acres that was harvested is 553 acres.
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Oh you can go on a plane, drive, take a train, or taxi!
The statement that Phenolphthalein is not
affected by PH is False
Phenolphthalein is a colorless
chemical compound, when added to alkaline
solutions it will turns pink, which means it
has been affected by the PH.
Phenolphthalein will remain colorless
if in acidic solution, that's less than PH of 7.
But at pH level of 8.2 it turns pink then at pH
10 it turns magenta.
Therefore, PH do affect Phenolphthalein
indicator
