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Design a laboratory set-up that would enable you to separate a mixture of three hydrocarbons with different boiling points. Draw and label a diagram of your set-up, and develop the procedure you will use to separate the hydrocarbons.
how many grams of sodium benzoate should be added to prepare the buffer?
the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose all that apply.- hydrogen bonding
Suppose a 500mL solution contains 2.00 millimoles of Co(NO3)2, 150.0 millimoles of NH3, and 150.0 milllimoles of Ethylendediamine (en). What is the concentration of Cobalt 2+ (aq) in the solution?
The next generation "ultra supercritical" power plants may operate with steam pressures of up to 300 bar. However, material strength limitations prevent operation of high pressure equipment at temperatures above 600 C.
How many ml of a 2M HCl are required to neutralize 200 ml of a 0.4 M solution of NaOH?
a 10.000-g sample of toothpaste containing stannous flouride gives a 0.145-g precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
Calculate the concentrations of all species in a 1.75 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
A 12-liter tank contains helium gas pressurized to 160atm . What size tank would be needed to contain this same amount of helium at atmospheric pressure (1atm )?
Give the bond angle and describe the shape around the central atom designated in this molecule.
calculate the change in internal energy when 2 moles of CO are converted to 2 moles of CO2 at 1 bar and 25 degrees C
What is the concentration of X when the potential is 0.0490 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
When 1.543 g of copper(II) sulfate pentahydrate is heated to drive off the water of hydration, how many grams of copper(II) sulfate and water are formed?
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