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Maleic acid is used to retard the breakdown of fats. Imagine that you prepared a buffer by adding 14.35 millimoles of maleic acid and 20.57 millimoles of sodium hydrogen maleate to a 250.0mL volumetric flask which you brought to the mark with DI water. What is the pH of the soultion after your lab partner adds 10.00mL of 0.1336M KOH to the flask? Ka values for maleic acid are Ka1=1.20x10^-2 and ka2=5.96x10^-7
How many grams of salicylic acid and of acetic anyhydride should she use? refer to the following reaction: 2 C7H6O3 + C4H603 -> 2 C9H8O4 + H20
At 21, the rate constant is0.0110 s^-1 . At what temperature in degrees Celsius would this reaction go twice as fast?
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
A compound is heated to produce gas whose molecular mass is to be determined. The gas is collected by displacing water in a water filled flask inverted in a trough of water
Calculate w (in kJ) when 422 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 445 K:
In order to separate 261 mg of the sample with similar separation of the components, what size column, diameter and length, should be used? And what volume flow rate should be used?
In the haloform reaction, once the first alpha-hydrogen atom is replaced by a halogen atom, each successive hydrogen is more easily substituted
How much heat is required to raise the temperature of 7.50 grams of water from 10 degrees celcius to 55 degrees celcius
The vapor pressure of pure methanol, CH3OH, at 30 C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr.
Assuming that its molar heat of vaporization is constant at 28.4 kJ/mol, the boiling point of C2H5NH2 when the external pressure is 0.709 atm is K.
calculate the inimum temperature at which this process will be spontaneous under standard conditions. Assume that Delta Ho and Delta So do not vary with temperature.
The carboxylate groups in sugammadex play an important binding role in locking rocuronium into the central cavity of the cyclodextrin, but they also have an important role in allowing the drug access to the cavity.
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