Question

How much heat is liberated by the combustion of 206 g of hydrogen? `DeltaH_(comb)` = -286 kJ/mol

Answer 1

58900kJ

Explanation:

`n("H")=m/M=(206g)/(1.00gmol^-1)=206mol`

`"Energy Released" = DeltaH_(comb) xx n = -286kJmol^-1xx206mol=58916kJ=58900kJ("3s.f.")`