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Which of the following combinations of peaks appears in the 1H NMR spectrum of diethyl ether, CH3CH2OCH2CH3? a. a triplet and a doublet b. a quartet and a sextet c. two singlets d. a triplet and a quartet Which of the following combinations of peaks appears in the 1H NMR spectrum of 1,2-dimethyoxyethane, CH3OCH2CH2OCH3? a. two singlets b. a singlet and a triplet c. a singlet and two triplets d. a doublet and a triplet Please explain!?
In this exercise it was also assumed that the calorimeter was a perfect insulator and that no heat was lost to the surroundings.
The volume of a sample of a gas at 273 degrees Celsius is 200.0 L. if the volume is decreased to 100.0 L at constant temperature, what will be the new temperature of gas?
A car travels at 58.0 miles per hour and gets 12.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.50 hour trip?
Does your result agree with the measured overall rate law expression? If not, under what conditions would agreement be observed?
At 0.0 degrees C, if the volume of air is 2.5 mL and the pressure of the atmosphere that day is 805 mmHg, what is the number of moles of air.
Use the de Broglie relationship to determine the wavelengths of the following objects: an lithium atom moving at 2.5*10^5m/sUsing Heisenberg's uncertainty principle,
At 340 K, Kp = 69 for the reaction H2(g) + I2(g) ô€• 2HI(g). 50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340 K. What is the total pressure inside the cylinder when the system comes to equilibrium?
A blood-volume determination was carried out on a patient by injection with 20.0 mL of blood that had been radioactively labeled with Cr-51 to an activity of 4.10 microCi/mL.
The equilibrium constant, Kp, for the following reaction is 9.4 at 500.0 degrees C. A mixture in a container at this temperature has a total pressure of 2.0 atm. The molar percent of N2O4 is 12.0% and NO2 is 88.0%.
suppose .853L of H2 is collected at 15 degrees celcius and 782 mmHg. how much electricity in coulombs must have passed through the solution
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
Calculate the VOLUME (mL) of liquid H2O formed if the reaction goes to completion and you condense the water vapor.
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