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An enzyme-catalyzed reaction was carried out with the substrate concentration initially 1,000 times greater than the Km for that substrate. After nine minutes 1% of the substrate had been converted to the product as well as the amount of product formed was 12umol. If in a separate experiment, 1/3 as much enzyme as well as twice as much substrate had been combined, explain how long it would take for the same amount of product to be formed?
Using the information (A 7.0 x 10 ^-3 aqueous solution of Ca(OH)2 at 25.0 degrees C has a PH of?) At equilibrium, what is the molarity of H3O+ in a 0.010 M solution of HClO
Calculate the number of carbon atoms in 4.56 grams of ethanol (CH3CH2OH).
Predict the physical state of krypton at -150°C (Mp = -157°C, Bp = -152°C) and normal atmospheric pressure.
a compound contains 10.13 c and 89.87 cl by mass. determine both the empirical formula and the molecular formula of the
A 2.20 g sample of a large boimolecule was dissolved in 13.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule.
ammonia reacts with diatomic oxygen to form nitric oxide and watervapor. when 40.0g of ammonia and 50.0 g of oxygen
Aluminum is a lightweight metal (density=2.70 g/cm^3) used in aircraft construction, beverage cans, and foils. a) What is its density in kg/m^3? b) How many pounds would an aluminum clock measuring 1.0 m x 2.0 m x 1.5 m weigh
A zero-order reaction has a constant rate of 4.60×10?4 M/\rm s. If after 70.0 seconds the concentration has dropped to 6.50×10?2 M, what was the initial concentration
A test solution contained 2 mL of 0.10 M Ag+. A silver strip was dipped into the test solution, and a cell potential of 0.0592 V was measured against an Ag/Ag+(1.0M) reference half-cell.
silver (I) perchlorate into a 50.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in mol/L of the silver (I) perchlorate soluation
how many kilojoules are needed to raise the temperature of 325 g of water from 15.0c to 77.0c? how many kilojoules are
Ag+ is added to a solution of 0.0018 M Cl- and 0.0018 M SCN-. Define the AgSCN precipitates first (Ksp = 1.0 × 10-12), followed by the AgCl (Ksp = 1.8 × 10-10). Explain what percentage of the SCN- is still in solution not precipitated Explain when..
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