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A competitive inhibitor of carbonic anhydrase has a K(i) of 0.04 M. What is the V(max) for this reaction of 0.6 mg/mL in the presence of 4.20 mM inhibitor.
Calculate the entropy change for vaporization of 18g of H2O? The molar enthalpy of vaporization for water is 44 kj/mol and the boiling point is 100 degrees celsius
Decide whether to use acetic acid/acetate or formic acid/formate. Prepare .100 L of a pH 3.74 buffer with a total buffer strength of 0.100 M Calculate the volumes of acid and base necessary to make
THE IONIZATION ENERGY OF HYDROGEN. In a normal hydrogen atom, the electron is in the lowest energy state. The maximum energy that a hydrogen atom can have is 0 cm-1
A uniform electric field of magnitude 2500N/C makes an angle of 27 degrees with a plane surface of area 0.355 m2. what is the net charge inside the box
How many grams of riboflavin (molecular mass = 374.6g/mol) are required to prepare a 1.00L solution that is 5.00 x 10^-5 M
A blue ball is thrown upward with an initial speed of 21.6 m/s, from a height of 0.9 meters above the ground. 2.6 seconds after the blue ball is thrown, What is the maximum height the blue ball reac
A mixture of SO2 and SO2O2 and SO3 at 1000k contains the gases at the following concentrations [SO2]=5.0e-3 mol/L [O2]=1.9e-3 mol/L and [SO3]=6.9e-3 mol/L is the reacton at equilibrium. If not which
You walk from your house 0.25 miles West to Fred's house, What is your displacement from your initial position
Why must all the lines in the hydrogen spectrum between 2500 A and 7000 A belong to the Balmer series
A person rides a bike 6.5 miles in 26 min up a mountain, climbing 1900 vertical feet. how much work did his muscles do
What type of solid (e.g., molecular or metallic) would you expect each of the following substances to form (and explain why): (i) HCOOH; (ii) CaF2; (iii) Xe; (iv) K; (v) SiC; (vi) NH4Cl; (vii) MgO.
A skier is gliding along at 2.8m/s on horizontal, frictionless snow. He suddenly starts down a 10?incline. what is the distance of the incline
What physical properties affect the rate at which a liquid drains out of a container through a small hole? Explain your answer.
A football quarterback is moving straight backward at a speed of 2.0 m/s when he throws a pass to a player 20.0 m straight downfield. How long does it take to get to the receiver
Dimethyl ether and ethanol are structural isomers of C2H6O. Which one will have a higher boiling point? Explain why and do the same for their melting points.
Calculate the amount (mL) needed of a 4.0 M phenylmagnesium chloride in THF solution to give 1.5 equivalents based on the amount of starting material used. Starting material needed
(i) Arrange the following compounds in the order of increasing melting points: (a) He, (b) NH3, (c) LiBr, (d) Ar, (e) CsBr, (f) PH3, (g) CsI, and (h) RbBr.
What volumes of 0.150 M acetic acid and 0.065 M NaOH solutions must be mixed to prepare 1.00L of a buffer solution of pH 4.50 at 25C.(Show all work for 5 stars)
Why is the dissolving of salt sometimes an exothermic and sometimes an exothermic process
Volume of water used, mL: 75.0ml Initial temperature of water: 23.4 degree celsius Mass of salt taken, g: 5g Moles of salt taken, mol: 0.0625mol Highest/lowest temperature,: 24.0/20.1 Calculate heat
A 66 kg solid sphere with a 14 cm radius is suspended by a vertical wire. What is the period of the oscillations
The student adds 6 M NH3 to CuSO4 solution until the Cu 2+ ion is essentially all converted to Cu(NH3)4 2+ ion. The voltage of the cell goes up to 0.92 V and the Cu electrode is still negative. Find
The neutral OH molecule has been implicated in certain ozone-destroying processes which take place in the upper atmosphere. a.) Assuming the electron added to OH is entirely localized in a single at
A rock is thrown downward from the top of a 39.8-m-tall tower with an initial speed of 9 m/s. Assuming negligible air resistance, what is the speed of the rock