Calculate the volume of both solutions needed to create
A buffer is created by mixing equal concentrations of NH4+ and NH3. Calculate the volume of both solutions needed to create a buffer of pH = 8.75 with a total volume of 100 mL.
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The pressure inside a soda bottle is two atmospheres (1520mmHg). If exactly half this pressure is generated by CO2,what is the solubility of carbon dioxide in a 2 L bottle of rootbeer at 40 oC? The Henry's Law constant forCO2 is 4.45x10-5M/mm Hg.
The indicator phenolphthalein is used in this lab and changes from colorless to red at pH around 9 when a base is titrated with an acid.
An isolated cylinder contains 0.3 m3 of steam divided into two (closed) chambers by a piston that can operate adiabatically. Estimate the temperature of the air when it has reached mechanical (e.g., pressure) equilibrium. Steam tables will be helpful
The verbal part of the graduate record exam has a mean (?) of 500 and a standard deviation (?) of 100. Use the normal distribution to answer the following questions:
Determine the change in the rate at which the following quantities enter and exit: combined thermal and flow work, mechanical energy, total energy. Determine heat trasfer rate. Properties may be obtained from thermo text.
One reason carbon monoxide (CO) is toxic is that it binds to the protein hemoglobin more strongly than oxygen does. The bond between hemoglobin and CO absorbs radiation of 1953^-1. (Theunits are the reciprocal of the wavelength in centimeters.)
Determine the tension in the restraining rope at a 60 degree from vertical angle. Assuming that the inlet and exit temperatures are equal.
If the mass of the petcock in a particular pressure cooker is 50 grams, and has an opening cross-sectional area of 4 mm2, what is the operation pressure inside the cooker?
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