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rjkz [21]
3 years ago
8

How many particles (atoms) are there in 12 grams of carbon 12?

Chemistry
1 answer:
Masteriza [31]3 years ago
8 0
6.022 x 10 ^ 23 atoms.
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Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

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2 moles of Al require = 2 moles of NaOH/tex]Thus 0.049 moles of [tex]Al will require=\frac{2}{2}\times 0.049=0.049moles  of NaOH

Thus Al is the limiting reagent as it limits the formation of product and NaOH is the excess reagent.

As 2 moles of Al give = 3 moles of H_2

Thus 0.049 moles of Al give =\frac{3}{2}\times 0.049=0.0735moles  of H_2

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Thus 0.147 g of H_2 will be produced from the given masses of both reactants.

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