Part A Calculate the standard enthalpy change for the reaction Use the following

Question

Part A Calculate the standard enthalpy change for the reaction Use the following data: Substance kJ/mol) -227 -387 223 475 Express your answer to three significant figures and include the appropriate units. Hints My Answers Give Up Correct Part B For the reaction given in Part A, how much heat is absorbed when 3.30 mol of A reacts? Express your answer to three significant figures and include the appropriate units. Hints Value Units Submit My Answers Give Up Incorrect; One attempt remaining; Try Again Your answer does not have the correct dimensions.

Explanation / Answer

from part A,

when 2 mol of A reacts, heat absorbed = 337 KJ

So,

for 3.30 mol of A, heat absorbed = (337)*3.30/2 =556 KJ

Answer: 556 KJ

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