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The subsequent kinds of molecular interactions which one would not be involved in the binding of an enzyme to a substrate?
a. covalent linkage
b. hydrogen bonds
c. van der Waals attractions
d. polar-polar attractions
e. ionic attractions
determine the ph of 0.25 m hno2 nitrous acid solution it is given that ka4.5 x 10-4?determine the molecular formula of
The vapor pressure of water is 23.8 mm Hg at 25 oC. If the wet H2 gas formed occupies a volume of 6.84 L, the number of grams of H2 formed is g.
Calculate the freezing point of a solution that contains 8.0 g of sucrose (C12H22O11) in 100. g of H2O. Kf for H2O = 1.86
sulfur reacts with oxygen to produce sulfur dioxide but only if the high activation energy is supplied. which condition
Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.
Instead of Calcium, oxalate ions can as well be precipitated using barium ions. Define how using barium ions instead might affect the mass of precipitate obtained. Greater. Less. Why
A solution of ethanol (C2H5OH) in water is prepared by dissolving 65.8 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
Hydrogen bonding is the intermolecular attractive forces between two hydrogen atoms in solution. The hydrogen bonding capabilities of water molecules cause CH3CH2CH2CH3 to be more soluble in water than CH3OH.
One mole of an ideal gas with a volume of 1.0 L and a pressure of 5.0 atm is allowed to expand isothermically into an evacuated bulb to give a total volume of 2.0L. Calculate w and q. Also calculate qrev for this change of state.
Coal as fired, contains 2.5% moisture. On the dry basis the coal analysis is as follows: carbon -80%, hydrogen- 6%, oxygen-8%, ash- 6%. The flue gas analysis.
Lucas Test. For each compund, drae its structure and note the amount of tome it takes for the soultion to become cloudy
An equilibrium mixture at 225 degrees contains 0.14M NH3 and0.19 M H2 for the reaction of 3H2+N2=2. If the Kc at this temp is 1.0*102, what is the equilibrium concentration of N2
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