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11-05-2016
Chemistry

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What is the mass, in g, of 0.500 mol of 1,2-dibromoethane, CH2BrCH2Br?

Ar (H) = 1; Ar (C) = 12; Ar (Br) = 80

A. 23.5

B. 47.0

C. 94.0

D. 188

Respuesta :

Willchemistry Willchemistry

11-05-2016

Molar mass CH2BrCH2Br = 188.0 g/mol

1 mole ---------- 188.0 g
0.500 moles ----- ?

mass = 0.500 * 188.0 / 1

= 94.0 g

Answer C

hope this helps!

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