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How many oxygen atoms are contained in a sample of aluminum nitrate, Al(NO3)3, with a mass of 4.285 x 10-21 g? (molar mass of Al(NO3)3 is 213 g mol-l) a 109 b. 54 c. 9 d. 3
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How many oxygen atoms are contained in a sample of aluminum nitrate, Al(NO3)3, with a

mass of 4.285 x 10-21 g? (molar mass of Al(NO3)3 is 213 g mol-l)
a 109
b. 54
c. 9
d. 3

User Dan Ganiev
by
6.3k points

1 Answer

6 votes

the answer is 9

Step-by-step explanation:

Explanation: In 1 formula unit of Al(NO3)3 , there are (clearly!) 9 atoms of oxygen, 3 nitrogen atoms, and 1 aluminum atom.

User Michael Recachinas
by
7.3k points
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