20 Minute Review QuizletAnswers
1. Calculate the activity of 0.100 m Ti(NO3)2 . The result should be expressed in terms of .
(Dont bother to find explicitly).
Answer: Note that m+ = mTi2+ = m and m- =
Handin 10 Answers
Introduction for Question 1:
Consider a central ion, i, surrounded by neighbors, j. The j neighbors include all anions and cations in
the solution other than ion, i. The Poisson equa
Handin Homework 8: Thermochemistry and Entropy
1. The enthalpy of formation of urea is -333.0 kJ mol-1 at 298.2 K. Calculate the internal energy
of formation at the same temperature. Urea is CH4N2O.
A
Handin 11b: Chemical Potential of Solutions
Fill in the following beakers with appropriate mole fractions and partial pressures. In other
words, does the chemical potential equation apply to a one pha
Handin Homework 10: Phase transitions
2. The normal melting point of CCl4 is 22.0C. At 22.0C the vapor pressure is 10.0 mmHg.
The liquid and solid densities are 1.63 and 1.80 g cm-3, respectively. The
Handin Homework 9: Free Energy
1. In an isothermal expansion of an ideal gas U=0. The value is not zero for a real gas. Using
the Van der Waal's equation of state, find U for an isothermal expansion f
Handin Homework 7
1. Background: The total differentials of U and H are:
U
U
U
dU = dV + dT = dV + Cv dT
VT
T V
VT
H
H
H
dH = P dP + T dT = P dP + Cp dT
T
P
T
This problem explores the relationshi
Handin 2: Concentration
1. Calculate the molarity of a 0.238 m solution of citric acid (M(citric acid) = 192.12 g mol-1).
The density of the solution is 1.0186 g mL-1.
Answer: We need to use Eq. 2.2.1
Handin 4: Kinetics Mechanisms
1. The decomposition of HI is given by the reaction 2 HI H2+ I2. One proposed mechanism is:
k1
HI H + I
k2
H + HI H2 + I
k3
2 I + M I2 + M
Use the steady-state approximat
Handin Homework 6
CH341
1. How ideal is water vapor? To answer this question, try the following problem: Assume a
volume for a closed flask of 10.000 L, a temperature of 298.15K, and 0.01280 moles of
Handin 5: Mechanistic Kinetics
1. Consider a reaction with the stoichiometry: A + B C + D. Assume that both A and
B absorb at a specific wavelength, while C and D do not. Assume also that A is the
lim
Handin Homework 12: Solutions and Chemical Equilibria
1. When 640. mg of naphthalene is dissolved in 40.0 g of chloroform, the boiling point of the
solution is 0.455C higher than that of pure solvent