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A flask contains a mixture of hydrogen and oxygen. The pressure exerted by these gases is 785 mmHg. If the partial pressure of the hydrogen in the mixture is 395 mmHg, what is the partial pressure of the oxygen?
A student carried out the synthesis of aspirin starting with 3.48g of salicylic acid. After carrying out the reaction, recrystallizing and then drying the product, the student obtained 3.30g of aspirin. Calculate the student's percent yield.
How much heat (in kJ) is released when 15.0 L of CO at 85 degrees C and 112 kPa reacts with 18.5 L of H2 at 75 degrees C and 744 torr?
calculate the equilibrium constant for this reaction at 25 C Part II at what temperature is this reaction spontaneous. Br2(I) Br2(g) delta H = 31.0 Kj/mol' delta s = 93.0 J/K.mol
find the empirical formula for the following compounds given the following information.find the empirical formula for
Suppose we redefine the standard state as P=2 atm find the new standard state ^Gf values of the following substances
Which of the following is true about ionic bonds?
What is the theoretical yield (in grams) of the precipitate when 22.35 g of barium nitrate reacts in solution with 11.37 g sodium carbonate
the delta H OF vaporization for a new substance is 45 kj/mol and its delta H sublimation is 62 kj/mol, how much energy is needed for freezing 2.75 mol of a substance
what is the wavelength in meters of a proton traveling at 2.70X10^8 m/s? (assume the mass of the proton to be 1.673X10^-27 kg)
What type of polymer are the chains packed less tightly together, resulting in lower melting points and a softer texture
What is the coordination environment of F in a hypothetical relative of CaF2, in which Ca forms a hcp array and F occupies all the tetrahedral sites?
A total of 2.00mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 188g of solution. The reaction caused the temperature of the solution to rise from 21.0 to 24.7 degrees Celsius .
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