Consider a protein with the acidic side chains, Amino Acid side-chain Arginine pKa = 12.48
Aspartic Acid PKa = 3.90
Cysteine pKa = 8.33

Glutamic acid pKa = 4.07
Histidine pKa = 6.04
Lysine pKa =10.79
Tyrosine pKa =10.13
Given that the pH of blood is about 7.3, how many of the above side chains would be mostly in their ionic form (A-) in blood?
1. 2
2. 3
3. 4
4. 5

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

What’s the theoretical yield of solid lead

The term gas is limited to those substances that exist in the gaseous state at