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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
A vitamin C tablet was dissolved in 50.0 mL of distilled water, and then titrated with 0.0100 M KIO3; 16.57 mL of KIO3 solution was needed to reach the endpoint. Calculate the grams of vitamin C were in the tablet
Write the chemical equation for the formation of CH from H and C atoms. Lone pairs do not need to be included. Then Using the table of bond energies determine the ?H for the above reaction.
draw the molecule 1-(4-methoxyphenyl)-2-methylpropan-1-ol. number the carbons on the molecule and identify all the functional groups characterized by the molecules name.
You take 3.1789 g of a substance and place it into 100.0 g of benzene. The boiling point of this solution is found to be 80.5464 C. What is the approximate molar mass of the substance? Bp of CCl4 is 80.1 C and the Kb is 2.53 C/m
Final temperature after urea dissolves in water, What is the final temperature of the solution in kJ? The density of water is 4.18 J/g·°C. What is the final temperature in °F? F = °C x 1.8 + 32 (Round your answer to one decimal place)
Compute pH of a solution that is 0.210 M in nitrous acid (HNO2) and 0.290M in Potassium nitrate(KNO2). Define the acid dissociation constant of nitrous acid is 4.5x10-4
Compute the molarity of a 35% solution by weight 35g HCl / 100 g of solution. At this concentration the solution has a density of 1.17 g/mL.
Diethyl ether has a boiling point of 345 degree C and 1 butanol has a boiling point of 117 degree C. Both of these compounds have the same number and types of atom. Explain the difference in their boiling points
Calculate the ratio as the conformation present in a higher concentration over the lower one
A calorimeter that contains 2500 g of surrounding water is used to measure the heat associated with the reaction of 520 g of a reactant. Calculate the energy, in joules per kilogram of reactant, associated with the reaction
i in co2 the first excited vibrational level is 30 kjmol above the ground level. calculate the population in the first
what is the molar heat of vaporization in kilojoules per mole if its vapor pressure at 20C is 540 torr?
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