How many atoms in a #10*mol# quantity of #CaCl_2#?

1 Answer
anor277
Jul 18, 2017

How many?

Explanation:

If I have 12 dozen eggses, how many dozens do I have? Do you agree that it is one dozen? Well then how many eggs in 12 dozen?

Now we gots a #10*mol# quantity of #CaCl_2#, i.e. there are #10*molxxN_A# individual formula units of #CaCl_2#, where #N_A-="Avocado number"-=6.022xx10^23*mol^-1#. And I am perfectly at liberty to use the symbol #N_A# to represent that number.

And so we got #10xxN_A=6.022xx10^24# individual calcium ions.

And we also gots #2xx10xxN_A=12.044xx10^24# individual chloride ions.

Can you tell me what mass of #CaCl_2# we got?

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