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30.0 mL of 0.100-M formic acid (Ka = 1.80×10-4) is titrated with 0.100-M NaOH.
What is the initial pH of the formic acid solution?
What is the pH of the solution after 12.0 mL NaOH has been added?
What is the pH of the solution after a total of 15.0 mL NaOH has been added?
What is the pH of the solution after a total of 24.0 mL NaOH has been added?
What is the pH of the solution after a total of 30.0 mL NaOH has been added?
What is the pH of the solution after a total of 36.0 mL NaOH has been added?
What is the enthalpy change corresponding to the melting of 2.5 moles of H2O? What is the system? What is the surrounding?
What fraction of the spherical atomic volume is occupied by the nucleus? What fraction of this atom's mass is contributed by its nucleus?
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
10.0 grams of sodium bicarbonate reacts with 50.0 mL of 2 M acetic acid, what is the limiting reactant? what reactant is in excess, and by how much? what volumeof carbon dioxide gas would form?
if you mix 40.0 mL of 0.366 M of K2CrO4 with 40.0 mol of 0.366 AgNO3. what mass of solid Ag2CrO4 would form?
Calculate the percent (by volume) of air that would be displaced when all of theN2 (l) get evaporated. it is given that Liquid nitrogen has a density of 0.807 g/mL
A solution is prepared by dissolving 14.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.50 mL sample of this stock solution is added to 55.00 mL of water.
Five hundred liters of a gas are cooled from 20°C to 10°C while the pressure remains constant.what the new volume will be?
how many liters of H2 would be formed at 530 mm Hg and 15 degrees celcius if 20.5g of zinc was allowed to react?
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
If 30 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
A student prepares a weak acid solution by dissolving 0.2500 g HZ to give 100. mL solution. The titration requires 30.0 mL of 0.1025 M NaOH
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