A phosphate buffer consisting of H2PO4(-1) and HPO4(-2) helps control the PH of physiological fluids. Many carbonated soft drinks also use this buffer system. What is the PH of a soft drink in which the major buffer is 0.153 M NaH2PO4 and .158 M Na2HPO4?
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The relationship between the concentrations of an acid, its conjugate base and the pH of the solution is described by the Henderson Hasselbalch equation:
<br>pH = pKa + ...
What copper (II) nitrate is dissolved in dilute hydrochloric acid the following is established.
Cu(H2))6^2+(aq) + 4Cl-(aq) <---> CuCl4^2-(aq) +6H2O(l)
(a) Write the equilibrium constant expression for this system.
(b) Three test tubes are set up, each containing some of the equilibrium mixture. Each of the tubes is trea
2NOBr(g) + Br2(g) <----> 2BrNO(g) @ equilibrium. NOBr is 34% dissociated at 25degreesC and total pressure is 0.25 atm.
Calculate Kp and Kc.
I know how to get Kp and Kc with given # of moles @ equilibrium, but cannot figure out how to get it from the percent dissociation. I tried inputting various values that I thought wer
a. What is market equilibrium? Does the market always reach equilibrium? Discuss
b. If there is surplus of gasoline in the market, then the price of gasoline will rise. True or false. Explain.
Please provide examples for better understanding.
1. For a certain chemical reaction, H= -156 kJ. Assuming the reaction is at equilibrium, classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.
a. a decrease in temperature R L no shift
b. an increase in tempera
In a simulation, m1 is 1.0 kg and m2 is 1.1 kg. Mass m2 rests on the floor that exerts a normal force, FN, on m2. There is no motion (i.e.. the system is in equilibrium). What is the normal force, FN, and what is the tension, T, in the rope? T (at t = 2.54 s) = ______. At equilibrium: FN + T - m2 ? g = 0. Then FN = _______.
There are two kinds of feedback loops that maintain homeostasis andequilibrium in an organism. What are they? Explain your answer, and provide an example of each.
