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Why is it that when a weak acid is dissolved in pure water, the extent of dissociation of the acid is less when pka value increases. Shouldn't the weak acid dissociate more as the pka increase?
A silver electrode is placed in a saturated solution of AgBr. This half-cell is connected to a standard hydrogen electrode and the voltage is found to be +0.437 V. Calculate Ksp for AgBr.
When sodium reacts with chlorine, 411 kj/mol is released. Calculate the amount of heat released if 1.37 mol of sodium form.
Aqueous silver nitrate was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of silver halides obtained was 0.9974 g. What are the molarities of HCl and HBr in the original solution
Calculate the pH of a 500.0 mL solution containing 0.75 M HC3H5O3 (Ka = 1.4 x 10-4) and 0.25 M NaC3H5O3.
Write the structural formula of the main organic product for the following reaction between an alcohol, tosyl chloride, and then a nucleophile.
Are the following processes exothermic or endothermic. the combustion of gasoline in a car engine water condensing on cold pipe CO2(s) CO2(g) F2 2F(g)
if a open-tube manometer contains a non volatile silicone oil density1.30 gcm3 instead of mercury 13.6 gcm3 what are
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum:
What is the maximum number of phases that can be in mutual equilibrium in a four component system?
What quantity of heat is required to vaporize 0.500 mL of Hg at 357 degrees celsius its normal boiling point. The density of Hg is 13.6 g/mL
An enzyme-catalyzed reaction produces a product that has a maximum absorbance at 412 nm. The extinction coefficient is 4000 M^-1 cm^-1. A 10-to-1 dilution of the enzyme is made and 20 microliter of the dilution are put into a cuvette with 80 micro..
Calculate the pH of the resulting solution if 22.0 mL of 0.220 M HCl(aq) is added to (a) 32.0 mL of 0.220 M NaOH(aq). (b) 12.0 mL of 0.320 M NaOH(aq).
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