Chemistry (OER)
2nd Edition
ISBN: 9781947172616
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 2, Problem 11E
Write the symbol for each of the following ions:
- the ion with a 1+ charge,
atomic number 55, and mass number 133 - the ion with 54 electrons, 53 protons, and 74 neutrons
- the ion with atomic number 15, mass number 31, and a 3− charge
- the ion with 24 electrons, 30 neutrons, and a 3+ charge
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3. Two solutions are prepared using the same solute:
Solution A: 0.14 g of the solute dissolves in 15.4 g of t-butanol
Solution B: 0.17 g of the solute dissolves in 12.7 g of cyclohexane
Which solution has the greatest freezing point change? Show calculations and explain.
2. Give the ground state electron configuration (e.g., 02s² σ*2s² П 2p²) for these molecules and deduce
its bond order.
Ground State Configuration
Bond Order
H2+
02-
N2
1. This experiment is more about understanding the colligative properties of a solution rather than the determination of
the molar mass of a solid.
a. Define colligative properties.
b. Which of the following solutes has the greatest effect on the colligative properties for a given mass of pure water?
Explain.
(i) 0.01 mol of CaCl2
(ii) 0.01 mol of KNO3
(iii) 0.01 mol of CO(NH2)2
(an electrolyte)
(an electrolyte)
(a nonelectrolyte)
Chapter 2 Solutions
Chemistry (OER)
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