8. Determine the ionic strength of the solution and the activity
coefficients for each ion in a solution containing 0.01 M NaCl,
0.005 M Ca(OH)2, and 0.01 M MgSO4
Using the definition of Ka and the Debeye-Huckel
expression for the mean ionic activity
coefficient, calculate the pH of a 0.10 M acetic acid solution in
(a) pure water (b) 0.1 M
NaCl and (c) in 0.2 M MgSO4. Assume consistent results after 3
iterations in each case
How does an increase or decrease in pH affect the composition
and charge of a functional group(s)?
What is the orientation of a water molecule around a negatively
charged ion? Positively charged ion?
Would nonpolar side chains make an amino acid hydrophilic or
hydrophobic? What about polar side chains?
Does inserting the dielectric increase or decrease the amount of
charge the battery is able to push onto the capacitor plates?
Explain why the dielectric has this effect.
Explain what an increase and decrease in demand does to
equilibrium price and quantities and why? Then, explain what an
increase and decrease in supply does to equilibrium price and
quantities and why?