How many Grams of C₆H₆ must decompose according to the following chemical equation to transfer 430kj of heat? C₆H₆(l) → 3 C₂H₂(g)∆H= 630 kj

Question

How many Grams of C₆H₆ must decompose according to the following chemical equation to transfer 430kj of heat?C₆H₆(l) → 3 C₂H₂(g)∆H= 630 kj

Please show the steps.

Answer 1

First, you must determine how many mols of reaction you need in order to produce the 430 kJ. To do this, you do 430kJ/630kJ.

Secondly, you convert mols of reaction to mols of C6H6. Since the molar coefficient is 1, you multiply the mols of reaction by 1.

Finally, multiply the mols of C6H6 its molar mass (78g/mol) and that is your final answer.

I hope this helps!