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Determine the molality of a solution of water dissolved in methanol for which the mole fraction of water is 0.46.
Which of the acids in question #3 would be the best choice to create a buffer with pH = 7.35? If you had 250.0 mL of a 0.20 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base would be required to make the buff..
A sample of gas occupies a volume of 115mL at a pressure of 720. mmHg. Calculate its volume at STP.
What are the methods of Atomic absorption to detect unknown solution
Calculate the change in entropy (in J/K) for the following reaction at 298 K: C(s) + H2O(g) ? CO(g) + H2(g) Use entropy for graphite (diamond is too expensive).
What is the probability of finding a particle of mass m in (a) the left-hand and one-third, (b) the central one-third, and (c) the right-hand one-third
if carbon atoms started out neutral but ended up partially charged. did they gain electrons. lose them. is the carbon being reduced or oxidized?
Use the valence bond thoery to determine whether the complex ion CoCl4^2- is a square planar or tetrahedral. measurements of its paramagnetism show that it has three unpaired electrons
How many litres of NO are produced at STP when 162 g Ag reacts with excess HNO3
If 3.30ml of vinegar needs 45.0ml of 0.130M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10qt sample of this vinegar?
Chloroform, CHCl3, was once used as an anesthetic. Its vapor pressure is 197 mm Hg at 23 degrees Celsius, and 448 mm Hg at 45 degrees Celsius. Estimate its heat of vaporization and normal boiling point.
identify the functional group; and 3) and discuss general key chemical properties of the chemical that a fire, environmental, health or safety personnel should know.
What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current
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