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Posted by on Tuesday, September 17, 2013 at 1:22am.

The value of ∆Ho for the reaction below is -1107 kJ:

2Ba(s) + O2(g) → 2BaO(s)

How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to form BaO(s)?
A) 35.1
B) 114
C) 70.3
D) 20.8
E) 63.5

  • Chemisty - , Tuesday, September 17, 2013 at 11:49am

    1107 kJ x (15.75/2*atomic mass Ba) = ? kJ.

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