voylesro
voylesro
25-09-2016
Chemistry
contestada
How many grams of Br are in 515 g of CaBr2
Respuesta :
Willchemistry
Willchemistry
25-09-2016
Molar mass:
Br = 79.904 g/mol
CaBr2 = 199.886 g/mol
CaBr2 = 2 Br + Ca
199.886 g --------------- 2 x 79.904 g
515 g -------------------- ?? ( mass of Br )
515 x 2 x 79.904 / 199.886 =
82301.12 / 199.886 =>
411.74 g of Br
hope his helps!
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