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Predict whether the following will result in an increase or decrease in entropy and justify your reasoning.
1. Desalination of water
2. Dissociation of an O2 molecule
3. Formation of ozone from oxygen molecules and atoms
4. Diffusion of CFCs into the atmosphere
Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the anode of a voltaic cell?
A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. (a) What is the pH of this buffer? (b) what is the pH of the buffer after the addition of 0.02 mol of KOH? (c) What is the pH of the buffer after the addi..
1 a mixture of 25.0 g of no and an excess of o2 reacts according to the balanced equationnog o2gnbspnbsp regnbspnbsp
How does this affect the reported solubility product of borax at that temperature? Explain. Temperatures can range from 4.4 degrees C, 17.1 degrees C, 34.6 degrees C, 41.6 degrees C, and 50.6 degrees C.
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
Calculate the total energy (in kJ) absorbed by a person exposed to this radiation for 2.0 hours, given that there are 2.0 x 10^16 photons hitting earth's surface per square centimeter per second and the exposed body area
A 0.277 g sample of unknown monoprotic acid requires 39.21 mL of 0.1019 M NaOH to reach the endpoint.
The first appearance of a yellow color that lasts for more than 30 seconds occurs after 14.50 mL KI have been added. What is the value of the ion product of the titration?
What is the percentage of copper (by mass) in copper(II) nitrate trihydrate. Cu(NO3)2 : 3H20
Radiochemical techniques are useful in estimating the solubility product of many compounds. In one experiment, 50.0 mL of a 0.010 M AgNO3
benzene has a heat of vaporization of 30.72 kjmol and a normal boiling point of 80.1 degrees c. at what temperature
what chemical process occurs in the muscle cells to cause this discomfort and what chemical reactions have possibly taken place in the the body after the exercise. What possible treatments could be done for this person and how would the treatments..
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