EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
11th Edition
ISBN: 9780133897340
Author: Petrucci
Publisher: PEARSON CO
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Question
Chapter 3, Problem 111IAE
Interpretation Introduction
Interpretation:
The empirical formula of the yellowish-white compound formed on the copper strip in the presence of iodine vapor is to be calculated.
Concept introduction:
An empirical formula tells the simplest whole-number ratio of atoms of each element present in a molecule but not the exact number of atoms of each element.
The steps to determine the empirical formula is as follows:
1. Determine the mass and moles of each element present in a molecule.
2. Write the calculated moles of each element as the subscript of the element’s symbol to obtain a formula for the compound.
3. If the moles are not in the whole number then divide the subscript by smallest subscribe to get the empirical formula.
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Indicate the processes in the dismutation of Cu2O.
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2600
2400
2200
2000
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1400
1200
1000
800
Potential Energy (kJ)
600
400
200
0
-200-
-400
-600-
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(i) Cl₂ (g) + Pt(s) → 2Cl (g) + Pt(s)
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Ea
= 2350 kJ
AH=-950 kJ
ΔΗ = 575 ΚΙ
AH=-825 kJ
a. Draw the potential energy diagram for the reaction. Label the data points for clarity.
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Reaction Progress
b. What is the overall chemical equation?
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Chapter 3 Solutions
EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
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