What is the minimum mass of silica gel needed
You plan to purify a product by column chromatography using silica gel as your stationary phase. What is the minimum mass of silica gel needed to carry out purification?
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Knowing that the coefficient of restitution is 0.8 between B and C, and 0.5 between A and B, Determine the velocity of each car after all collisions have taken place.
How do you calculate the concentration of oxalic acid and potassium permanganate for each run when you are given the stock concentration of each compound and the amount of Liters in each run.
The angle through which the wires supporting the block rotate as a result of the impact is measured and determined to be 7 degrees. What is the bullet's velocity?
A tire holds air (assume it's all N2) at a pressure of 3 atm, and in one week the pressue drops by 1% because of inevitable leakage at the rim, when the temperature is 300 K.
If you wish to further purify this liquid after column chromatography, what techniques could you use? What would the limitation of carrying out this technique be?
Find the ideal Otto cycle efficiency and compare with the values of efficiency calculated from mpg rating. Comment on the results.
How many grams of sodium sulfate should be added to how many grams of sulfuric acid to give 1.00 L of buffer with pH 2.80 and a total sulfur concentration of 0.200 M?
How long does this coal reserve of US will last if all coal is used to generate electricity? Assume the efficiency of converting coal to electricity is 35%.
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