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16-02-2017
Chemistry

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How many moles are in 20.50 grams of NH3?
A. 3.4 x 10 -24 moles
B. 1.23 x 1026 moles
C. 1.204 moles
D. 349.12 moles

Respuesta :

Аноним Аноним

16-02-2017

Number of grams in 1 mole = 6.23 * 10^23
Now, in 20.50, it would be: 20.50 / 6.23 * 10^23 = 3.4 * 10^-24 moles

In short, Your Answer would be Option A

Hope this helps!

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