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If an ideal gas is expanded reversibly, the heat absorbed qrev, can be expressed by the differential dqrev = Cv dT + P dV, Where Cv is a constant (called heat capacity at constant volume). Show that dqrev is an inexact differential.
Estimate the heat released when ethene CH2 CH2 reacts with hydrogen gas to give CH3CH3.
Tartaric acid, which occurs in many fruits, has a molar mass of 150.1 g/mol and contains 63.96% oxygen by mass. How many oxygen atoms are in each tartaric acid molecules.
Calculate the total heat in joules needed to convert 25.00 g of ice at -3.50 degrees c to liquid water at 0.250 degrees c.
a sample of H2O with a mass of 46.0 grams has a temperture of 100 c. how many joules energy are necessary to boil the water
The % mass composition of 0.1458g sample of a compound was measured by burning the compound in an excess of oxygen.
How many grams of carbon dioxide would be obtained from the burning of 92g of ethanol in oxygen?
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point
10 ml of a silver nitrate solution is titrated to the equivalence point with 8.5 ml of a .1100 M HCL solution. What is the concentration of the silver nitrate?
The atomic weight of a newly discovered el- ement is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu. The second isotope has a per- cent abundance of 41.7%. What is the mass of the second isotope?
The redox reaction of peroxydisulfate with iodide has been used for many years as part of the iodine clock reaction which introduces students to kinetics. If Eºcell = 1.587 V and Eº of the anode half-cell is 0.536 V, what is Eº of the cathode half..
My lab is of an iodine clock reaction. I am being asked to calculate the initial rates for experiments 1, 2, and 3 from delta [S2082-]/ delta time. I know how to use the initial rate method however I am confused on how to obtain the initial concen..
the property of mercury that allows it to form an amalgam with gold has been used in thee mining industry for hundred of years. during the boom in california in the 19th century, it is estimated that 3.0X10^6 pounds of gold were produced using thi..
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