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Answer to Question #8375 in Other Chemistry for Carrie

Question #8375
How many moles are 1.20x10 to the 25 power atoms of phosphorous
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Assignment Expert
18.02.14, 15:16

Firstly you have forgotten to divide by 4 because the standard phosphorus allotrope the white phosphorus consists of molecules P4. After that you should divide the obtained value by Avogadro's number. How have you obtained such a large value? It is seemed that you added 23 to 25 in power, while it should be subtracted.

11.02.14, 01:46

i did not get that. i divided 1.20 x 10^25 by Avogadro's number and i got 1.99 x 10^47 mol P

Assignment Expert
30.10.12, 15:00

Each molecule of P<sub>4</sub> contains 4 atoms, that's why there's that "4" factor

29.10.12, 20:05

Were is the 4 coming from

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