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(a) Express the second law of thermodynamics in words.
(b) If the entropy of the system increases during a reversible process, what can you say about the entropy change of the surroundings?
(c) In a certain spontaneous process the system undergoes an entropy change, ?S = 42 J/K. What can you conclude about ?Ssurr?
Draw the Lewis structure for each including formal charges and describe in paragraph format how you went about solving the problem and making sure the answer was correct.
One way to recrystallize a solute from a solution is to change the temperature. Another way is to evaporate solvent from the solution. A 340 g sample of a saturated solution of KNO3 in water is prepared at 25.0.
Please draw a detailed arrow-pushing mechanism for the addition of HBr to trans-2-butene. Also draw a potential energy diagram for this reaction.
What is the change is volume when 1.00 mol of CH4 reacts with 2.00 mol O2? What is the w for this chnage? Calculate the change in internal energy, U, for the change indicated by the chemical equation
The heat of vaporization of water =40.66 kJ/mol at 100 °C. Compute the quantity of heat that is absorbed/released when 9.00 grams of steam condenses to liquid water at the temperature of100 degree celsius.
The standard reduction potential for the reduction of Eu3+(aq) to Eu2+(aq) is -0.43V. Which of the following substances is capable of reducing Eu3+(aq) to Eu2+(aq) under standard conditions?
A certain complex of metal M is formulated as MCl3*3H20. The coordination number of the complex is not known, but is expected to be 4 or 6. would reaction of the complex with AgNO3(aq) provide information about the coordination number?
If a 250mL solution of ethanol in water is prepared with 4mL of absolute ethanol, explain what is the concentration of ethanol in % v/v
what concentration of aqueous nh3 is necessary to just start precipitation of mnoh2 from a 0.020 m solution of mnso4?
A total of 0.155 of this subunit was dissolved in enough water to produce 2.00 of solution. At 28 the osmotic pressure produced by the solution was 0.138 . What is the molar mass of the protein?
an alloy that melts at about the boiling point of water has bipb and sn atoms in the ratio1065 respectively. what mass
show states of matter and charges where appropriate. Also find molecular equation, total Ionic Equation, and Net Ionic Equation.
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