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Makovka662 [10]
3 years ago
10

How many molecules does one mole of O2 gas have

Chemistry
1 answer:
Arlecino [84]3 years ago
6 0
6.02x10^23 would be it.


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Balanced equation for the reaction:

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DATA GIVEN:

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mass of Al = 750 grams, atomic mass = 26.9 grams/mole

aluminum hydroxide theoretical yield = ?

Moles of NaOH reacted

number of moles = \frac{mass}{atomic mass of 1 mole}

putting the values in the equation

NaOH = \frac{842}{39.9}

           = 21.1 MOLES OF NaOH

Al = \frac{750}{26.9}

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from the equation

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21.1 moles of NaOH will react to give x moles of Al(OH)3

\frac{1}{3} = \frac{x}{21.1}

7.03 moles of Al(OH)3 is formed.

and

1 mole of Al(OH)3 is formed from 1 mole of Al in the reaction

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