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