CBSE Class 12-science Answered
how to find the no.of moles in a particular ionic compound,for ex:KCl is 2,K3PO4 is 4 ,how?
Asked by sitaramsuraj8 | 16 Feb, 2014, 03:03: PM
Expert Answer
First determine what ions you have and how many of each.
In the given example,
For KCl, answer is 2.
Explanation
you have K+ potassium ions and Cl- chloride ions.
Now how many are there?
There are 1 K+ ions and 1 Cl- ion for a total of 2 ions in the formula. Therefore the answer is 2.
Similarly,
For K3PO4, anser is4.
Explanation
you have K+ potassium ions and PO4- phosphate ions.
Now how many are there?
There are 3 K+ ions and 1 PO4- ions for a total of 4 ions in the formula. Therefore the answer is 4.
Answered by | 17 Feb, 2014, 12:39: PM
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