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Explain which distilation method (fractional or simple) would be most appropriate to seperate hexanes and dichloromethane
How much heat is evolved in converting 1.00 mol of steam at 130.0 C to ice at -50.0 C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.
If 2.09 g SO2 react with excess oxygen and water, how many grams of H2SO4 are produced?
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
A 15 L flask containing a sample of nitromethane is filled with O2 and the flask is heated to 100 celcius. At this temperture, and after the reaction is complete
The mass of a cube of gold with one side measuring 150. cm is ______ kg. The density of gold is 19.32 g/cm3
A researcher is interested in studying the effect of vanadium (V) on egg albumen. He wants to supplement the V to 1 metric ton of his laying hen diet at a concentration of 100 ppm.
A Cr^{3 + } aq solution is electrolyzed, using a current of 7.50 A}. What mass of Cr}( s) is plated out after 1.80 days? also What amperage is required to plate out 0.300 mol Cr from a Cr^{3 + } solution in a period of 7.20 h
Use Henderson Hassalbalch equation to calculate how much HCl must be added to a liter of buffer that is 1.5 M in acetic acid and 0.75M in sodium acetate to result in a buffer pH of 4.10? Ka = 1.8 x 10-5
if you added 75.0 ml of a 0.555 M solution of NaCl to enough water to produce 950.0 ml of solution, what would be the resulting molarity?
A solution of water (Kf = 1.86 degrees C/m) and glucose freezes at -2.55 degrees C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 degrees C. Express the molal concentration numeri..
What happens to the time at which the mid point of the breakthrough curve exists the column if the particle size is halved but the adsorption isotherm and column size stay the same?
Calculate the change in the molar Gibbs energy of hydrogen gas when its pressure is increased isothermally
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