Jorstice B.

asked • 11/24/14

Chemistry, How do I figure this out?

When you add 0.205 g of sodium metal to an excess of hydrochloric acid, you find that 2130 J of heat are produced. What is the enthalpy of the reaction as written below?
Enthalpy Of Reaction: In kJ?

1 Expert Answer


Francisco P. answered • 11/24/14

Rigorous Physics and Math Tutor

Jorstice B.

Thank you for the answer!


Alyssa F.

Since the coefficient of Sodium in the equation is 2, you actually have to double your answer. You did it based off of 1, which would be correct if that was the coefficient but the correct answer is -477.6 kJ.


Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.