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With a value of Ka = 2.69*10^-4 and initial pH = 3.57 of the solution, what would the intial concentration of this acid?
Describe the paradox and explain how modern genetic discoveries have helped resolve this paradox. In your explanation, be sure to include a real biological (genetic) mechanism, summarize how the mechanism works and why it (partially) resolves this..
Even with a perfect shima and a higher field of instrument, the spectrum of 2-methyl-2-hexanol is difficult to interpret. Give two different reasons for this difficulty
For a particular redox reaction MnO2 is oxidized to MnO4- and Ag is reduced to Ag. Complete and balance the equation for this reaction in basic solution
What is the total sample size (in grams) for a sample of lithium hydroxide which contains 3.66 g of oxygen
Addition of NH3 precipitated Fe2O3*xH2O, which was ignited to give 0.264g of Fe2O3 (FM 159.69). What is the average mass of Fe2SO4*7H2O (FM 278.01) in each tablet?
The equilibrium expression for the reaction: 2C(s) + 2H2O(I) ? CH4(g) + CO2(g) is Keq = [CH4][CO2]. If an equilibrium reaction shifts to the right when the system is cooled, this indicates that the reaction is endothermic
1calculate the total pressure in atm of a mixture of 0.0270 mol of helium he and 0.0200 mol of oxygen o2 in a 4-l flask
List the following in decreasing order of strength (from strongest to weakest): hypochlorous acid, choric acid, perchloric acid, chlorous acid. Explain what trend in these oxoacids is making them progressively more acidic.
C2H4 + 3O2 = 2CO2 + 2H2O If you start with 54 grams of ethylene (C2H4) how many grams of carbon dioxide will be produced?
some amount of potassium dichromatenbsp k2cro7 thatnbsp is 2.335 g isnbsp dissolved in enough h2o to prepare a
calculate the bicarbonate and carbonate alkalinities in mgl as caco3 of a water having a total alkalinity of 233.0mgl
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
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