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A buffer solution is prepared by mixing 75ml of a 0.275M ofC7H5O2F wilth 55ml of a 0.472M solution of C7H4O2FNa. The pKa ofthis weak acid is 2.90. What is the pH of the buffer solution?
Explain how alkene/aromatic C-H stretches are distinguished from alkane C-H stretches. Do the C-H stretch peaks in the IR spectra of triphenylmethanol, bromobenzene and benzophenone occur in the expected alkene/aromatic C-H stretching region
A mixture at equilibrium at 827 C contains .552 mol CO2, .552 mol H2, .448 mol CO, and .448 mol H20. The balanced equation is shown below: CO2(g) + H2(g) CO(g) + H2O(g) What is the value of Keq?
A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.
How many moles of NiCl can be formed in the reaction of 5.00 mol of Ni and 10.0 mol of HCl
boron has primarily two isotopes one withatomic mass of 11 amu and the other with an atomic mass of 10 amu.if the
One of the chair conformations of cis-1,3-dimethylcyclohexane is more stable than the other by 23.1 kJ/mol. Use this to estimate the energy cost of a 1,3-diaxial interaction between two methyl groups.
Draw the monobromination product that would be obtained from the radical bromination of methylcyclohexane? which product would obtained in greatest yield?
Write balanced net ionic equation for the reaction between hydrobromic acid and potassium hydroxide.
A gas evolved during the fermentation of sugar was collected at 22.5 degrees celsuis and 702 mmHg. After purification its volume was found to be 25.0 L. How many moles of gas were collected?
what is the diffrence between anatomical theory of diease, humoral concept of diease, and germ diease.
Explain why replacement of a hydrogen on the oxygen by CH3 generally results in a lower boiling point. What are the major factors responsible for the difference in boiling points of the two ethers.
what is the relationship between the structure of the fabric molecule and the intensity with which the azo dyes color the fabric?
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