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1. Would you expect phosphorus to exhibit an NMR spectrum? Why or why not
2. When radio-frequency energy is absorbed by a nucleus with a spin of 1/2 that is in a magnetic field, what happens
3. How does the irradiation of nuclei in FT-NMR instruments differ from irradiation in other types of NMR instruments? What are the advantages of FT-NMR over the other NMR techniques
4. In many respects, the spectrum of CH3CH2I (iodoethane) appears to be identical to that of ethanol. What are the differences in the two spectra and why do these differences arise
Hydrogen gas produced in the laboratory by the reaction of zinc and hydrochloric acid was collected over water at 25°C. The barometric pressure at the time was 742.5 mm Hg.
What is the molar solubility of Mn(OH)2 in a solution that is buffered at pH 8.00
if it takes 1656 kj/mol to break all bonds in methane, what is the bond empathy of one C-H bond?
Does coal flue gas react with sand or glass. if so under what conditions?
An infant acetaminophen suspension contains 80 0.80 suspension. The recommended dose is 15 body weight. How many of this suspension should be given to an infant weighing 11. (Assume two significant figures.)
An experiment was carried out similar to the one carried out to determine the empirical formula of magnesium oxide. The empirical formula for an oxide of chromium is required
unknown concentration of sodium hydroxide for complete neutralization. What is the molarity of the sodium hydroxide solution?
Inquired to give a patient 5 cc of medicine per 100 lbs. body weight. Explain how many mL of this medicine would you give an 85 kg patient
We have a solution that is in equilibrium with solid Ag2SO3 (ksp=1.5x10^-14), and buffered at pH=8.00. The sulfite anion (SO3(2-)) is the conjugate base of the bisulfite anion (HSO3-), Calculate the concentrations of all chemical species present i..
a 5.00-ml sample of an h3po4 solution of unknown concentration is titrated with a 0.1003 m naoh solution. a volume of
an hcl solution was made by mixing 20ml of concentrated 12m hcl with 100ml of isopropyl alcohol. what is the molarity
What is the vapor pressure of SiCl4 (in mm Hg) at 23.5 C? The vapor pressure of SiCl4 is 100 mm Hg at 5.4 C and Delta H
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