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provide a detailed "curved arrow" reacton mechanism for each step in the indium mediated Barbier Reaction of cinnamyl bromide 1 with benzaldehyde
The water level in a graduated cylinder initially at 210 mL rises to 277 mL after a piece of lead is submerged. What is the mass in grams of the lead?
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
change in enthalpy at 25 C and 1 atm for the reaction of 5.00 mol of elemental iron with excess oxygen gas?
Butane lighters work very poorly outdoors in the cold weather. If 12.7 mL of butane gas is released from a lighter at 22 degrees celcius, what volume would the same amount of butane occupy at 11 degrees celcius?
Provide a chemical equation for a reaction that could be used to form each ether, and provide reaction conditions that can be used to remove each protecting group.
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
Radioactive isotope X has been found in rock units S and Q. Isotope X breaks down into isotope Z with a half life of 250 million years.
Description of Intermolecular forces, What parts of the calcium chloride are attracted to what parts of the water molecule when calcium chloride dissolves
what will be the % yield after one crystallization step using the minimum amount of solvent A that is required for the crystallization step?
The equation for lowering the freezing point of a solvent is given in your manual. Given that the freezing point for the pure solvent is 79.5 , the molality is 0.15 , and the freezing point depression constant is 6.9 , determine the freezing tempe..
Hydrogen peroxide decomposes to water and oxygen, and the activation energy for this process is 42 kJ/mol. The hydrogen peroxide formed in the biological process is harmful to tissue
What is the identity of the unknown, Dinitrogenmonoxide (N2O), laughing gas, is used by dentists as an anesthetic. If 2.86 molof gas occupies a 20.0 L tank at 23°C, what is the pressure (mmHg) in the tank in the dentist office?
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