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Enter queDetermine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) Enter scientific notation as 1.23E4. (a) The initial pH : (b) The volume of HI(aq) required to reach the equivalence point : (c) The pH at the half-neutralization point. (d)The pH at the equivalence point.
A 0.5M aqueous solution of hypobromous acid (for which Ka=2.3 * 10*-9) has what pH ? a. 6.78 b. 5.36 c. 4.47 d. 3.39 Please show the counting process.
The activation energy of a reaction is 56.8kJ/mol and the frequency factor is 1.5*10^11/s. Calculate the rate constant of the reaction at 26degrees C
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air.
The statements in the following multiple choices deal with various aspects of reaction rates
You are given a box containing at equilibrium at 1000 K 0.102 moles/liter NH3, 1.03 moles/liter N2, and 1.63 moles/liter H2 for the reaction N2(g) +3 H2(g)-->/
The following reaction is spontaneous only below 3000 K. What conclusions can be drawn regarding this reaction? A + B ® AB
Compounds of Reactions, Explain why compound A reacts 9000 times faster than compound B at 0 degrees
solutions of ag plus, cu 2 plus, fe 3plus, and Ti 4 plus are electrolyzed with the constant current until 0.10 mole of metal is deposited. which will require the greatest lenght of time.
If the system below is at equilibrium in a closed vessel and a small amount of nitrous acid is added, what would be expected to happen
What wavelength of radiation must be used to eject electrons with a velocity of 1.5 X 10^3 km s-1
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 13.0 L
Calculate the total degrees of freedom over the entire process. Next, calculate the degrees of freedom around each unit operation. Label all calculations.
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