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Question- If a buffer solution is 0.100 M in a weak acid (Ka = 7.2 x 10-5) and 0.560 M in its conjugate base, what is the pH?
I understand that you are using the Ka to find the pKa and then putting the pKa into the Henderson-Hassl. Equation, but t he number I keep getting is incorrect.
I am not able to solve the above problem somebody help me to get the correct answer
what is the value for deltaS if 20g of a substance (MW=78.0g/mol) is boiled at 50 degrees C
535 g piece of copper tubing is heated to 91.5°C and placed in an insulated vessel containing 58.5 g of water at 29.5°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system (c of copp..
Show the reaction mechanism when 2-methyl-2-butanol, sulfuric acid(H2SO4), and water are in a mixture
Is it possible to prepare a buffer using HNO2? What is the expected pH range. Why is it seldom used to prepare buffer solutions
State which substance in each of the following pairs you would expect to have the higher boiling point and explain why.
If your methanol was wet (contained water), what compound would be formed and isolated along with trityl methy ether. Explain and what effect would that have on the melting point of the product
Problem- The molecular formula for a compound is C9H16O. It is a cyclic compound containing six atoms of C in a ring and one substituent. There is no other element of unsaturation in the ring. The compound is only slightly soluble in water and rea..
Calculate the mass of nitrogen dissolved at room temperature in an 81.0L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
The car has a city mileage of 20 miles per gallon. If the car is replaced with the new car with city mileage off 32 miles per gallon and the average cost of gasoline is $3.62 per gallon, estimate the amount of fuel, energy, and money conserved wit..
The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0x10^- 13 cm. The hydrogen atom itself has a radius of approximately 52.9 pm.What fraction of the space within the atom is occupied by the nucleus?
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
Question- The hydroxyl radical (OH) is an important oxidizing agent in the atmosphere. At 298 K the rate constant for the reaction of OH with benzene is 1.24?10?12 cm3molecule?1 s?1. Calculate the value of the rate constant in L mol?1 s?1.
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