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Precipitated out through experimental procedures

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A student decomposes a 9.317 g sample of a compound containing only nickel and iodine. 1.245 g of nickel are precipitated out through experimental procedures. 
The empirical formula of the compound is: 

A) NiI2                       B) NiI3                        C) Ni3I                    D) Ni2I

Reference no: EM131353877

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