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The intiala rates at various substrate concentrations for an enzyme-catalyzed reaction are as follows.
[S]/M.............Vo/10^-6 M/min
2.5x10^-5.......38.0
4x10^-5.........53.4
6x10^-5.........68.6
8x10^-5.........80.0
16x10^-5.......106.8
20x10^-5.......114.0
Does the reaction follow michaelis-menten kinetics? and calculate Vmax and Km of the reaction.
The specific heat of an unknown metal is found to be 0.233 J/K g. The Law of Dulong and Petit predicts a molar heat capacity of 26 J/K mol. Use this law to estimate the molar mass of the metal.
Hair splits most easily along its fiber axis, whereas fingernails tend to split across the finger (sideways) rather than along it. What are the directions of the keratin fibrils in hair and in fingernails
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
a sample of nitrogen gas is collected over water at a tempature of 23.0 c. what is the pressure of the nitrogen gas if atmospheric pressure is 785 mm hg
A gaseous mixture of O2 and N2 contains 39.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 645 mmHg
Calculate the percent ionization of hydrazoic acid (HN3, Ka = 1.9x10^-5) in solutinos of the following concentrations. A) 0.400 M
A student prepares benzoic acid by hydrolyzing 6.47g of methyl benzoate (FW 136.15 g/mol) using excess sodium hydroxide. If the student recovers 3.71g of benzoic acid
A reaction has a rate constant of 0.0686 sec-1; how long will it take (in minutes) until 0.198 mol/L of the compound is left, if there was 0.715 mol/L at the start? (give answer to 3 sig figs using E notation)
(a) If the fuel consists of 9.3 mole CH4, 3.1 mole C2H6, 0.40 mol C3H8, and 0.20 mole C4H10, what mass of CO2 (g) is produced per minute? (b) How much heat is released per minute?
Determine the rate constant. b. What fraction of the initial N2O5 will remain after 13.0 h? c. What is the half-life? d. If the initial concentration of N2O5 was 0.222 M, then what concentration remain after 24 h?
Identify the element or elements that undergo
The following compounds undergo McLafferty rearrangement in the mass spectrometer. Predict the masses of the resulting charged fragments for each of the following compound.
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