How many iron and chlorine atoms are there in an 18⋅mol quantity of FeCl3?

1 Answer
anor277
Dec 10, 2017

How many eggses in 18 dozen eggs? Are there not 216 individual eggs?

Explanation:

The mole is simply another collective number like a dozen, or a gross, or a score; just as there are 12 items per dozen, there are 6.022×1023 items per mole. Chemists often use the abbreviation NA to represent this number.

And so we gots an 18 mole quantity of FeCl3. Do you agree that CLEARLY there are 54⋅mol of chloride ions, and 18 mole of Fe3+ ions?

What is the mass of this molar quantity?

And why should we use such an absurdly large number like a mole? If the answer is not immediately apparent, then what is the MASS of 6.022×1023 individual hydrogen atoms? The mole is thus the link between the sub-micro world or atoms and molecules, to the macro world of grams and litres.....

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