How many grams of potassium bromide are produced from 42.9g of aluminum bromide ?

1 Answer
SCooke
Feb 25, 2018

#57.4g KBr#

Explanation:

ASSUMING a viable reaction pathway, this is just a conversion from the requisite 3 Br in #AlBr_3# to the single Br atom in #KBr# related to the number of original moles of #AlBr_3#.
#42.9/266.7 = 0.161# moles #AlBr_3#.

Therefore, there are 0.483 moles of #Br# to form the same number of #KBr# molecules. #0.483 xx 118.9 = 57.4g KBr#

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