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Problem- Hydrocyanic acid is titrated with NaOH. Determine the pH when 42.50 mL of 0.125 M NaOH has been added to 95.0 mL of 0.150 M hydrocyanic acid pKa = 9.31 Where is located on the titration curve? Explain
I am in urgent need of solution of above problem with complete explanation
The pH of a 0.175 M aqueous solution of a weak acid is 3.52. What is Ka for this acid
A gas at room temperature and at a constant pressure of 1 atm is going to be used to heat a material that is at a cooler temperature. You are offered the option of using 1 mol of argon (Ar) gas or 1 mol of nitrogen (N2) gas for this purpose. Which..
Specify whether a simple distillation or a fractional distillation would be more suitable for each of the following purifications, and briefly justify your choice.
One mole of H20(g) at 1.00 atm and 100.Celcius occupies a volume of 30.6 L. Explain when one mole of H20(g) is condensed to one mole of H20(l) at 1.00 atm and 100. Celsius 40.66 kJ of heat is released. If the density of H20(l) at this temperature ..
Compute the energy change in a system in which 44.95 kJ of heat is given off at 1.925atm pressure and the volume changes from 1.0265 L to 0.5549 L.
some species of bacteria can oxidize nitrite to nitrate using the energy released by the transfer of electrons to oxygen to drive ATP synthesis. Given the E values below, calculate the max yield of ATP per mole of nitrite oxidized.
A certainly gaseous solute dissolves in water, evolving 12.0 kJ of heat. Its solubility at 25 C and 4.00 atm is 0.0200 M. Would you expect the solubility to be greater than 0.0200 M at: a. 5 C and 6 atm? b. 50 C and 2 atm? c. 20 C and 4 atm? d. 25..
Urea has a mass percent composition of 20% C, 6.71% H, 46.65% N, and 26.64% O. A solution prepared by dissolving 1.62 g of urea in 100 g of water freezes at -0.5 degrees C. What is the molecular formula of urea.
a mixture is prepared by mixing a 0.10 l solution of 0.12 m nacl with a 0.23 solution of 0.18 m mgcl2. what volume of a
You will standardize the NaOH solution by titrating a weighed sample of potassium acid phtalate, KHC8H4O4 (MM=204.32g/mol). Calculate the mass that will require 20mL of base of the above calculated concentration.
What is the final temperature once thermal equilibrium has been established. How much ice remains once thermal equilibrium is established
assuming the gases to be ideal answer the following a a vessel contains 7 grams of nitrogen and 11 grams of carbon
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