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Given 217 mL of a buffer solution that is 0.46 M formic acid and 0.27 M sodium formate, calculate the pH of this solution after the addition of 2.8 mL of 6.3 M hydrochloric acid. The Ka of formic acid is 1.8x10-4
How much limestone must be decomposed by heating to produce 250.0 grams of lime, CaO?assuming that the limestone contains 95.0% pure CaCO3.
How many mL of Br2 (l) with a density of 3.12 g/mL must you dispense to have 1.56 mole (mol) of Br2 (l).
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 8,622kJ of heat is needed from the combustion, how much carbon (g) must be consumed
Explain how the transition from the enamine intermediate to the imine intermediate in the Fischer indole synthesis of 2-phenylindole
Gas chromatography. Answer the following questions about retention times of the following compounds. Given naphthalene (boiling point = 218 degrees C), phenol (boiling point =181.7 degrees
What is the chemical balance equation and what causes the color and precipitation?
monoprotic acid. Dihydrogen pthalate (H2C8H4O4) is a diprotic acid. An analyte sample contains 0.127 M KHP and 0.0678 M (H2C8H4O4). What volume of a 0.205 M NaOH solution is required to neutralize 25.0 mL of the analyte solution.
sketch the qualitative molecular orbital diagram for the complexes.
Calculate the number of moles of HCl that would be consumed by 1.0 g of NaHCO3
For the complete neutralization reactions between the following pairs of acid and bases, which pair is a soluble, strong base and a weak acid that react to form an insoluble salt?
Calculate the work done in Joules when one mole of an ideal gas, initially at P = 9 atm, T = 298 K is expanded isothermally to P = 1 atm if (a) the expansion proceeds against a onstant external pressure Pext = 1 atm; (b) the external pressure is r..
Calculate the solubility of copper (II) iodate in 0.56 M copper (II) nitrate. Ksp* is 7.4x10-8 M3.
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