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
1.
After exercising, respiratory rate______________(increase or
decrease) and breathing holding time _______________(increase or
decrease). Explain why.
2. After rebreathing air, respiratory
rate______________(increase or decrease) and breath holding
time_____________(increase or decrease). Explain why.
3. After hyperventillation, respiratory
rate_____________(increase or decrease) and breath holding
time____________(increase or decrease). Explain why.
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?