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A 0.1651-g sample of an unknown monoprotic acid was dissolved in 28.4 mL of water and titrated with 0.0634 M NaOH solution. The volume of base required to bring the solution to the equivalence point was 19.1 mL. Calculate the molar mass of the acid.
a first order reaction has an arrhenius constant for the reactionis 4.8 x 1011 sec -1 and an activation energy of 61.4
a. For a weak acid with a pKa of 6.0, show how you would calculate the ratio of acid to salt at pH 5. b. Suppose you have just added 100 mL of a solution containing 0.5 mol of acetic acid per liter to 400 mL of 0.5 M NaOH. What is the final pH?
a 45 kg person drinks 390. g of milk which has a caloric value of approximately 3.0 kjg. if only 18 of the energy in
The unknown solution is composed of 50.0 g of nitrobenzene and 5.00 mL of the liquid unknown. Freezing point for nitrobenzene is 5.20 degrees C
They help position the reactant molecules to facilitate the reaction. They make electron transfer proceed more rapidly.
The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride
the first-order rate constant for the reaction of methyl chloride ch3cl with water to produce methanol ch3oh and
How many milliliters of a solution that is 10.53% H3PO4 (w/w) with a density of 1.1928 g/mL should be diluted in order to make 4.50 L of a 0.100 M H3PO4 solution
Two future experiments are the syntheses of phenacetin and dibenzalacetone. Which, if any, of the qualitative tests performed in this lab could be used to determine of the presence of either reactants
use the measure "mass of 10.00mL" which is 10.574g, to calculate the density of mass NaCl which is 5.923g
A beaker with 120 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.50 mL of a 0.250 M HCl solution to the beaker. How much will the pH..
What is the Slater determinant for the GS of Be? I need to also find an expression for its energy in terms of Coulomb and Exchange integrals.
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