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a proton that absorbs radio frequency radiation at higher field strength will appear ________ in a 1H NMR spectrum
a.) at 0 ppm
b.) downfield (away from TMS)
c.) upfield (closer to TMS)
d.) at 7.27 ppm just like CDCl3
The root-mean-square (rms) speed of a sample of molecules was found to be 1.8*10^3 m/s at 25.0 degrees C. After heating, the rms speed was found to be 4.6*10^3 m/s. What was the temperature of the sample after heating
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
What is the relationship between the ionization energy of an anion with a 1- charge such as F- and the electron affinity of the neutral atom, F
A 285- flask contains pure helium at a pressure of 750 . A second flask with a volume of 470 contains pure argon at a pressure of 716 .If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of h..
If 482.4 mL of 16.5 M H2SO4 solution is diluted to 5.6 L, what is the new concentration of H+ in the diluted solution?
Find the molar reaction enthalpy by diving by the number of moles H+ and OH- that reacted (assume that the solution which is actually 1M NaOH, has the same density and heat capacity as water)
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M HCN (Ka = 4.9 x 10-10) solution.
Compare your predicted Cl-C-Cl bond angle and the program model predicted Cl-C-Cl bond angle in C2Cl4 with the actual Cl-C-Cl bond angle in C2Cl4. Are they the same. Explain any differences based on electron repulsion and sizes of atoms and electr..
What functional group is present in glucose? Is glucose a reducing or nonreducing carbohydrate?
The crystalline form of silver (Ag) is composed of face-centered cubic unit cells. If the density of silver is 10.48 g/cm3 at room temperature,
Amphetamines in urine can be confirmed by mass spectroscopy at a concentration of 500 ng/mL. Assuming a urine density of 1.025 g/mL, what is this concentration in parts per million
What volume of ammonia at 25 °C and 1.5 atm pressure is needed to produce 500 g of urea?
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