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27-01-2022
Chemistry

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Which substance contains more molecules, 10.0 g of N2H6 or 10.0 g of PCl3? Explain how you know.

Respuesta :

8dpgt6nq8q 8dpgt6nq8q

27-01-2022

Answer:

N2H6 has more

Explanation:

(Mr)N2H6= 14.007x2+1x6=34g/mol

n=10/34=0.29mol

number of molecules=0.29x6.02x10^23= 1.74x10^23

(mr)PCl3=30.974+35.45x3=137.32g/mol

n=10/137.32=0.073

number of molecules=0.073x6.02x10^23= 4.39x10^23

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