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Sorbic acid, CH2CHCHCHCH2CO2H (pKa= 4.77), is widely used in the food industry as a preservative. For example, its potassium salt (potassium sorbate) is added to cheese to inhibit the formation of mold. What is the pH of the 0.37 M potassium sorbate solution?
Given the following value, tell whether the starting material or product is favored at equilibrium. delta H=6.5 kcal/mol. Is this a starting material favored, or product favored
It takes 45.0 to raise the temperature of an 8.00 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal.
what elutes from the column when etc. Why do you think you use extraction techniques instead of chromatography?
Calculate the number of moles of oxygen gas produced from the completely catalyzed decomposition of 6.20ml sample of a 3.5% solution of H2O2. The density of the 3.5% solution of H2O2 is 1.01 g/ml.
If the molar enthalpy of combustion of ethane is -1.56 MJ/mol, how much heat is produced in the burning of;
The equilibrium constant for the following reaction is .20 at 100 degrees C. if an equilibrium mixture contains solid carbon, [H2O]=.40 M, and [CO]=.40 M,what is the [H2]? C(s)+H2O(g) CO(g)+H2(g)
Which reaction intermediate is formed when 4-methylcyclohexene reacts with Br2 dissolved in CCl4?
If you have 330 ml of water at 25 degrees and add 110 ml of water at 95 degrees, What is the final temperature of the mixture.
The free radical chlorination of isobutane at 25C yields 64% isobutyl chloride and 36% tert-butyl chloride. However, free radical bromination of the same compound at 127C yields only trace amounts of isobutyl bromide and 99% of tert-butyl bromide
A fossil is found to have a 14C level of 75.0% compared to living organisms. How old is the fossil
CaCN2 + 3H2O -> CaCO3 + 2NH3 . How much NH3 is produced if 187 g of CaCO3 are produced?
Calculate the mass of pure silver that when heated from 12.0 degrees celcius to 15.2 degrees celcius it required 1.25 kj of energy
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