Question

Calculate the mass of 2x100 molecules of nitrogen gas.
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Answer 1

Answer:

200 is the correct answer

Answer 2

Answer:

m=9.24×10^-13

Explanation:

n= N/No

n= 2×10^10/(6.022×10^23 or 6 ×10^23)

n= 3.3×10^-13

n=m/M

m= n×M. (N2 = 14×2 =28)

m= 3.3×10^-13 ×28

m=9.24×10^-13

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