Consider the reaction (n)

Question

Consider the reaction

B₂H₆(g) + 3 O₂(g) → B₂O₃(s) + 3 H₂O(g) ∆H= -2035 kJ/mol

Calculate the amount of heat released when 43.3 g of diborane is burned.

heat released = kJ

Answer 1

43.3 g B₂H₆ x 1 mol B₂H₆/27.6 g x (-2035 kJ/mole) = kJ heat released (negative sign means heat is released)