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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?
How many grams of KNO2 must be added to 5.00 liters of 0.67 M HNO2 solution to produce a buffer with pH = 3.15?
The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0g yield. How many grams would be produced from 7.95g of butanoic acid and excess ethanol
A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.61 nm. It then gives off a photon having a wavelength of 950 nm. What is the final state of the hydrogen atom
What is the pH of the pyridine solution before you begin titrating? B) What is the pH after 75.0mL of the hydrochloric acid solution has been added?
If 355 mL of hydrogen gas is collected over water at 25C at a total pressure of 751 mmHg, how many grams of Zn reacted?
0.40 moles of a diprotic acid h2a is dissolved in 250 ml of water. the ka1 of this acid is 1.0 x 10e-5 and ka2 is 1.0 x
Using curved arrows, show how the species in part (a) can act as Lewis bases in their reactions with HCl, and how the species in part (b) can act as Lewis acids
Octane is a liquid component of gasoline. Given the following vapor pressures of octane at various temperatures,estimate the boiling point of octane in Leadville, Colorado, where the atmospheric pressure is 496 mmHg.
It takes 485 J of energy to raise the temperature of 104.1 g mercury from 20.0°C to 53.5°C. Calculate the specific heat capacity and the molar mass capacity of mercury.
the molar mass of a nonelectrolyte is 58.0 g/mol. Compute the boiling point of a solution containing 31.2g of this compound and 600.0 g of water
Draw the VSEPR diagram and classify the shape of the molecule for F2O
What m/z value would you predict for the most stable fragment peak in the mass spectrum of 4-ethylheptane ? a- 85 b-128 c-99 d-113 e- 127
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