Project #76884 - Chemistry

Assume you take a sample of 13.4 g Al and oxidize it (in an excess stream of O 2 ) to produce 2.10 g of Al 2 O 3 . Calculate the percent yield of Al 2 O 3 . Reaction: 4 Al + 3 O 2 → 2 Al 2 O 3 . You must show all work to receive credit. All numbers immediately following elemental symbols are subscripts

 

I cook my pasta by putting a little salt in the boiling water. If my pasta water is a 2.90% NaCl solution by mass with a density of 1.21 g/mL, how many mL of my pasta water contains 2.00 g of sodium? You must show all work clearly and in detail to receive credit. All numbers seen immediately following the elemental symbols are intended to be subscripts.

 

Theoretically speaking, how many moles of lithium bromide can be produced if we react 9.1 moles of CaBr 2 and 5.7 moles of LiCl? Reaction: CaBr 2 + 2LiCl → 2LiBr + CaCl 2 . You must show all work clearly and in detail to receive credit. All numbers seen immediately following the elemental symbols are intended to be subscripts.

Subject Science
Due By (Pacific Time) 07/19/2015 06:05 pm
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