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An unknown, compound X, shows a broad IR absorption band at 3200-3550 cm-1 but none in the 1620-1780 cm-1 region. It only contains only C,H, and O. A 116mg sample was treated with an excess of methylmagnesium bromide, producing 48.7ml of methane gas at 20 degrees C and 750mm Hg. The mass spectrum of X has its heaviest peak barely detectable at 116 m/z, and a fragment peak at 98 m/z. Use this information to determine the structure of X, showing your rationale, reactions, and any calculations.
Drawa a fat (oil) molecule representing corn oil. The fatty side chains that you need to include are two of the esters group derived from oleic acid and one from the linoleic acid. Draw the structure of this oil clearly with appropriate double bon..
solution of NaCl are mixed together, and a precipitate forms. Which are the spectator ions in this reaction?
describe the unit cell for potassium flouride, copper(I) flouride, and cadmium flouride. How many atoms of each type are in each unit cell?
A magnesium goes from its grond state to its first electronically excited state. I assume the ground state is a singlet.
Which of the following is NOT typical of most organic compounds?
At high temperatures, ammonia can react with oxygen according to the following unbalanced reaction: NH3 + O2 ---> NO + H2O If 5.76 moles of NH3 react with 12.2 moles of oxygen
A gas measures 180.0 mL at 87.0°C and 800.0 mm. Find its volume at standard temperature and 800.0 mm of pressure.
A solution is prepared by condensing 5.01L of a gas, measured at 27.0 degrees celcius and 769 mmHg pressure, into 72.1g of benzene. Calculate the freezing point of this solution.
What is the pH of the sodium phosphate buffer described in problem #1 if 1 ml of 10M NaOH is added? What is the pH of 1 liter of water if 1ml of NaOH is added?
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secreting cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
Rate of reaction for 8H2S +4O2 -> 8H2O + S8, if started with 21.35g of H2S and 15.36g of O2. What is the limiting reactant and how much S8 can be produced?
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