We’re being asked to determine the chemical equation for the formation of C2H2(g) from its elements in their standard states.
Let’s identify the elements present in the compound and determine their natural form (exists naturally as) or standard state (you can familiarize yourself with this or you can find them in your books or on the internet).
Write an equation for the formation of C2H2(g) from its elements in their standard states.
Express your answer as a chemical equation. Identify all of the phases in your answer.
Find ΔfH∘ for C2H2(g) from Appendix IIB in the textbook.
Express your answer using three significant figures.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Formation Equations concept. You can view video lessons to learn Formation Equations. Or if you need more Formation Equations practice, you can also practice Formation Equations practice problems.