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Suppose that an enzyme has the capacity to convert substrate A (Km = 1 x 10-3 M) to a product P1. Suppose the same enzyme can also convert another substrate B (Km = 1 x 10-6 M) to a different product, P2. Also suppose that an equal Vmax is possible with both of the substrates. Which substrate will show a greater rate of reaction at 1 x 10-3 M? Which substrate will show a greater rate at 1 x 10-2 M? What will be the effect of addition of B on the rate of reaction with A?
What is the boiling point change for a solution containing 0.841 moles of naphtalene (a nonvolatile, nonionizing compound) in 250.0 g of liquid benzene? (Kb = 2.53degrees Celsius/m for benzene).
C2H5OH (l) + 3O2(g) ---------> 2CO2(g) + 3H2O(l) ?H = - 1.37 x 103 kJ When a 24.8-g sample of ethyl alcohol (molar mass = 46.07 g/mol) is burned, how much energy is released as heat?
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
What volume of CO2 gas is produced by the complete combustion of 2.6L (C3H8) gas? Assume all gas volumes are measured at the same temperature and pressure. C3H8 + 5O2 ---> 3CO2 + 4H2O
At some temperature,a 100-L reaction vessel contains a mixture that is initially 1.00 mol CO and 2.00 mol H2. The vessel also contains a catalyst so that the following equilibrium is attained:
How many grams of oxygen are collected in a reaction where 231 mL of oxygen gas is collected over water at a temperature of 25°C and a total pressure of 697 torr?
How many kilograms of CaH2 are needed to fill a 147 L tank with compressed H2 gas at 160 atm pressure and 27 degrees C?
An airplane is pressurized to 650 {rm mm,Hg}, which is the atmospheric pressure at a ski resort at 1.30×104 {rm ft} altitude. If the partial pressure of oxygen drops below 100 {rm mm,Hg}, passengers become drowsy.
It was found that 19.33 mL of an HI solution are needed to react completely with 320 mL of a LiOH solution that has a pH of 11.87. What is the molarity of the HI solution
a assessor is measuring the perimeter of a rectangular lot. he measures two adjacent sides to be 50.11 plusmn 0.05 m
Given the general formula of a hydrate, Z. nH2O, which variable represents the anhydrous salt? the number of water molecules in each hydrate crystal?
A 1.28-gram sample of copper is heated with sulfur to produce 1.60 grams of a copper sulfide compund. Calculate the mass percentages of copper and sulfur in the compund.
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