Question

PLEASE HELP

Question 8 1 pts Hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 131 kJ is given off per mole of C2H4 reacting, how much heat (in kJ) is released when 12.1 kg of C2H6 forms? Enter a positive number since released implies a negative number. Enter to O decimal places. (MTS 2/10/2018)

Answer 1

Moles of C2H6 formed = moles of C2H4 used

Mass of C2H6 = 12.1 kg = 12100 g

Molar mass of C2H6 = 30.07 g/mol

So, moles of C2H6 = 12100/30.07 mol

So, heat released = 12100x131/30.07 = 52714 kJ

If that doesn't work, try 52837

Comment if any problem