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a. For aweak acid(eg,CH3COOH) That is Titrated with a strong base (eg,NaOH), what species(ions/molecules)are present in the solution at the stoichiometric point?
b.what species( ions/molecules)are present at the halfway point in the titration tword the stoichometric point in a.
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 251{rm torr} . Pure pentane and hexane have vapor pressures of 425
Which of the following are true statements ?
What are the units of the rate constant? c) What is the average value of the rate constant calculated from the three data sets?
The density of diamond is 3.51 g/cm . The international (but non-SI) unit for weighing diamonds is the "carat" (1 carat = 200 mg exactly.) What is volume of a 0.66 carat diamond?
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
the trunk remains undistrubed for 13,750 years what percentae of the original c-14 is still present ? ( half life of c-14 = 5730)
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
Consider the following exothermic reaction: C2H4 (g) + Cl2 (g) C2H4Cl2 (g) If you were a chemist trying to maximize the amount of C2H4Cl2 produced, which of the following might you try?
In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively. What is the partial pressure of Cl2 in the equilibrium mixture?
What is the pH of the solution if [OH-] of an ammonia solution is 1.0 X 10-2M?
A solution contains 9.87 (g) of dissolved silver. How many moles of potassium chloride must be added to the solution to completely precipitate all of the silver?
At a certain temperature, K = 9.1 10-4 for the following reaction. FeSCN2+(aq) Fe3+(aq) + SCN -(aq)
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