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An enzyme was assayed at a preliminary substrate concentration of 2x10^-5 M. In six minutes half of the substrate had been consumed. The km for the substrate is 5x10^-5M. Compute the vmax.
what would the product of the reaction between 1,3-dimethoxybenzene and tert-butanol in the presence
Determine E° for the reduction half-reaction Ce4+(aq) + e- → Ce3+(aq), given that the cell voltage for the following voltaic cell is E°cell = 1.887 V:
In acidic aqueous solution, water can be reduced to H2 gas, but the H+ ions can be reduced more easity. What is the voltage of the hydrogen ion reduction half-reaction, under standard conditions
nitrogen gas reacts with oxygen gas to form nitrogen monoxide gas. How many total electrons are transferred from each molecule of nitrogen or oxygen
What is the madelung constant. Why can the same Madelung constant be used for seemingly different substances
Which of these would NOT be expected to form in even small amounts in the free-radical chlorination of methane.
microwave ovens use microwave radiation to heat food. the energy of the microwaves is absorbed by water molecules in
what amount of solid sodium acetate is needed to prepare a buffer at ph 5.2 from 500 ml of 0.10 m acetic acid? the pka
A 25ml sample of 0.200 M HCO2H(aq) is titrated with 0.100 M KOH (aq). What is the pH at the equivalence point. (Ka of HCO2H = 1.8 x 10^-4)
Consider the titration of 80.0ml of 0.100M Ba(OH02 by 0.400 M HCl. Calculate pH of the resulting solution after 20.0mL of HCl is added.
The heat of combustion for ethane C2H6 (molar mass=28.0g/mol) is 52.0 kj/g. How much heat would be released if 14g of ethane undergo combustion. How much heat would be released if 2.75 moles of ethane undergoes combustion
Of the various properties of a "good" recrystallizing solvent why is it good to have a relatively volatile solvent, boiling point greater than or less than 100 degreesC
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