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Carbonic anhydrase (molar mass = 30,000 g/mol) of red blood cells has one of the highest turnover numbers. It catalyzes the reversible hydration of CO2: H2O + CO2 ? H2CO3 If 10.0 µg of pure carbonic anhydrase catalyzes the hydration of 0.30 g of CO2 in 1 min at 37°C at Vmax, what is the turnover number (kcat) of carbonic anhydrase? The units should be in min-1.
If the Km of carbonic anhydrase for the above reaction is 1.8 mM, what is the catalytic efficiency of this enzyme under these conditions? The units are s-1M-1.
A military gun is mounted on a railroad car (m = 1419 kg) as shown in the figure below There is no frictional force on the car, Find the recoil velocity of the car
Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) ? HOCH2CH2OH(l)
Two radio frequency point sources separated by 1.8 m are radiating in phase at a wavelength of 0.60 m. How many maxima does the detector detect
Design 4 substantive audit tests to carry out the work performed on each of the identified 2 key account balances.
A puck of mass m1 = 1.50 kg slides in a circle of radius r = 20.0 cm on a frictionless table while attached to a hanging cylinder of mass m2 = 2.50 kg by a cord through a hole in the table
A cylindrical bucket, open at the top, is 28.0 cm high and 10.0 cm in diameter. How high will the water rise in the bucket
A ball is thrown horizontally with the speed of 15 m/s from the top of a building. It takes the ball 5 s to land on the ground. What is the speed of the ball when it hits the ground
How much of my favorite Mosel River area vintage (35.0 % ethanol) brandy must Sam-E consume in order to lower the activity of his ADH on methanol to 2.00% of Vmax
A 0.75 kg cart has been attached to a spring. The cart is moved to the right by 2.0 cm. What is the elastic potential energy stored in the spring
what are some differences between the titration curves of strong acid and strong base versus weak acid and strong base?
What is the pH of a solution made by dissolving 46g of acetic acid in enough water to make 700 ml of solution
a small bubble rises from the botton of a lake where the temperature and pressure are 4c and 3.0 atm to the waters
If 32 mL of 6.8 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid ?
A diprotic acid, H2A, has the following ionization constants: Ka1 = 1.1 multiplied by 10-3 and Ka2 = 2.5 multiplied by 10-6. In order to make up a buffer solution of pH 5.80, which combination would you choose, NaHA/H2A or Na2A/NaHA? What is the p..
If 5.0 mL of . 85 M bleach solution is combined with 45.0 ml of .1 mM dye soultion at 30 degrees celcius, what will bre the therorectical concentration of dye in the reaction mixture after 60 seconds
Calculate the mass deficiency in amu, binding energy in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291amu
Oxygen and sulfur combine to form a variety of differenet sulfur oxides. Some are stable molecules and some, including S2O2 and S2O3, decompose when they are heated
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
How much heat energy is liberated when 11.0 grams of manganese is used in the formation of Mn2O3
In Ag+S8->Ag2S reaction, 2g of Ag and 2g of S8 are alowed to reac to completion what is limiting reactant, how many grams of Ag2S are produced, and how many grams of excess reagent remain
A container consists of CO2 gas at a temperature of 15 C and at a pressure of .990 atmospheres. The volume of the container is 500 mL. How many grams of CO2 would be in the container?
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