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If a buffer solution is 0.270 M in a weak base (Kb=7.5 x 10^-5) and 0.410 M in its conjugate acid, what is the pH?
A compound, A, c6h8, yields a single organic product, B, upon ozonolysis and absorbs two moles of hydrogen on catalytic hydrogenation to give C
What is the formula for the compound formed between germanium with a valency of (IV) and iodine
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Useful data might be
A test tube containing a mixture of KCl, KClO3, and MnO2 having a total weight of 23.584 g was heated to compose the KClO3. After heating, the mass was found to be 22.347 g.
The container is then heated to 339 K. If the final pressure is 1.75 atm, what was the initial pressure?
Each of 2 front tire in the car is filled with a different gas. One tire contains 116g of helium, another tire has 160g of unknown gas. How many times heavier is a molecule of the unkown gas than an atom of helium.
The solid KIO3 is diluted shy of the 100mL mark in the volumetric flask. does this technique error result in a reported molar concentration of KIO3 that is too high or too low
The equilibrium constant, Kc, for the following reaction is 1.29E-2 at 600 K: COCl2(g) CO(g) + Cl2(g)
For a particular reaction, H = -30. kJ and S = -88 J/K. Assume that H and S do not vary with temperature
Determine the concentration in molarity (M) of a crystal violet solution based on a measured absorbance of 0.652 at 590 nm at a path length of 1.0 cm
Draw the major organic product formed by reaction of 3-hexyne with the following reagent: Cl2 (1mol)
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
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