Calculating the Number of Molecules Present in a Sample
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I need to calculate the number of molecules present in:
(a) 0.650 mol propane, C3H8, a gas used in laboratories
(b) a 500mg tablet of CaCO3, an antacid
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Solution Summary
The solution talks through the problem by way of explaining how to determine the number of molecules present in the two given samples.
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a.
There are 6.022x10^23 molecules of "chemical X" in a mole of "chemical X" (in this case "chemical X" is propane).
"Mole" is just a number.
you have 0.650 mol of propane times 6.022x10^23 molecules per mole
= 3.91x10^23 molecules
b.
For the next one, you need to convert ...
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