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Two gases are contained in gas bulbs connected by a valve. Gas A ispresent in a 45 L bulb at a pressure of 388 torr. Gas B exerts apressure of 681 torr in a 83 L bulb. What is the partial pressure of gas B after they equilibrate once the valve has been opened?
the human body contains 0.20 natural potassium. k-40 represents 0.0117 of naturally occurring potassium. 1. what is the
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.
Find the energy eigenstates for the system. Compute the normalization constant for these eigenstates. What is the boundary condition for this problem. What does this restrict the allowed energies of the system to be? e) What is the degeneracy of t..
We did an experiment on leaf decomposition. Given the following information, can someone supply the net, balanced, ionic equations for the experiment
1. draw a six-carbon-chain portion from isotactic polypropylene in which all of the groups point in the same direction
Draw the product of the reaction of propanal with methanol containing dissolved hydrogen chloride. Draw the product of the reaction of propanal with sodium cyanide with addition of sulfuric acid
Calibration of a glass electrode gave a reading of 148.7 mV with 0.05 m potassium dihydrogen citrate buffer standard (pH = 3.766) and a reading of -167.4 mV with 0.01 m borax buffer standard (pH = 9.139), both measured at 30°C.
In the reaction: 2 Na + Cl2 = 2 NaCl, if 46.0 g of sodium react, what is the first step necessary in determining how much sodium chloride can form
A first order reaction has a rate constant of 0.342 sec-^1 at 29.5 degrees C. If the activation energy is 69 kJ, calculate the temperature in degrees C at which the rate constant is 0.428 sec^-1.
A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DH°rxn. The molar ma..
The temperature of the entire system rose from 25.30 °C to 26.59 °C. Calculate the heat of reaction, in kJ, per mole of KOH(aq).
The delta G for the freezing of at -10 C is -210 J/mo and the heat of fusion of ice at this temperature is 5610 J/mol. Find the entropy change of the universe when 3 mol of water freezes at -10 C.
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