Sammysam3999 Sammysam3999

17-02-2017
Chemistry

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26 g of zinc combines with 12.8 g of sulfur. What is the empirical formula of zinc sulfide?
A. Zn2S2
B. ZnS2
C. ZnS
D. Zn2S

Respuesta :

scme1702 scme1702

24-02-2017

Moles of Zn: 26 / 65 = 0.4
Moles of S: 12.8 / 32 = 0.4

Molar ratio of Zn : S = 1 : 1
Empircal formula: ZnS

The answer is C

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