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A buffer solution is made by adding 5.05 g of KOH (56.1 g/mol) to 500.0 mL of 0.400 M benzoic acid, HC7H5O2 (Ka = 6.6×10^-5)
Calculate the pH of the solution that results when 100.0 mL of 0.150 M HCl is added to the above buffer (total volume is 600.00 mL).
Draw the structure of two geometric isomers with the empirical formula C5H8O that gives a positive iodoform test.
Determine the mass of precipitate (in grams) that forms when 213.8 mL of 0.132 M CaCl2 solution is reacted with excess AgNO3 solution.
determinenbsp the energy in joules of a mole of photons coupled with red light of wavelength 7.00 acute 102 nm c 3.0 x
what is the concentration of the h2so4 if a chemist titrates 300.0 ml of sodium hydroxide naoh with a 5.0 m solution of
To a 100 mL volumetric flask are added 1.00 mL volumes of three solutions: 0.0100 M AgNO3, 0.220 M NaBr, and 0.100 M NaCN. The mixture is diluted with deionized water to the mark and shaken vigorously.
What mass of isopropyl alcohol (C3H8O) in grams can be melted when a sample absorbs 1575 kJ of heat at its melting point? (Isopropyl alcohol: ?Hfus = 5.37 kJ/mol)
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at its Boyle temperature. Assume that the pressure is 10 atm throughout.
A graduated cylinder contains 133 mL of water. A 17.0 g piece of iron (density = 7.86 {g/cm^3}) and a 23.0 g piece of lead are added. What is the new water level in the cylinder?
As pH increases, hydronium ion concentration increases. As pH increases, hydroxide ion concentration increases
what are the boiling point and freezing point of a 1.47m solution of napthalene in benzene
a portable water heater transfers 225 watts of power to 5.5 l of water. how much time will it take the water heater to
Write a chemical equation for the reaction whose enthalpy change is the standard enthalpy of formation, ?H of, of table sugar, sucrose, C12H22O11 (s).
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