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What sequence of steps represents the best synthesis of 2-heptanol? a) CH3CH2CH2MgBr (2 moles) + formaldehyde in diethyl ether followed by H3O+ b) CH3CH2CH2CH2MgBr + butanal in diethyl ether followed by H3O+ c) CH3CH2CH2CH2MgBr + acetone in diethyl ether followed by H3O+ d) CH3CH2CH2CH2CH2MgBr + ethanal in diethyl ether followed by H3O+
Glucose oxidation has a standard enthalpy of -2803 kJ/mol. What is the total heat produced by human respiration over the course of one year
How much heat is required to vaporize 25.5 g of water at 100 C? The heat of vaporization of water at 100 C is 40.7 rm kJ/mole.
An ideal solution is formed from a mixture of the nonvolatile solute urea, CO(NH2)2, and methanol, CH3OH. The vapor pressure of pure methanol at 20°C is 89 mmHg. If 4.9 g of urea is mixed with 31.0 g of methanol, calculate the vapor pressure of th..
Calculate the molality, molarity and mol fraction of a 25.4% (by mass) aqueous solution of phosphoric acid (H3PO4). in one litre of solution.
In the presence of excess thiocyanate ion, SCN-, the following reaction is first order in chromium (III) ion, Cr3+; the rate constant is 2.0 x 10-6/s.
Taking into account resonance, which of the following has/have the weakest C-O bond
An unknown volume of water at 18.2°C is added to 28.7 mL of water at 32.5°C. If the final temperature is 23.5°C, what was the unknown volume. (Assume that no heat is lost to the surroundings; d of water is 1.00 g/mL.)
analysis of corrosion mechanisms and preventative measuresdissimilar and selective metal corrosion have presented a
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
calculate the freezing point of a nonionizing antifreeze solution containing 388 g ethylene glycol, C2H6O2 and 409 g of water.
titanium metal has a body-centered circle unit cell. The density of titanium is 4.50 g/cm^3 . Calculate the edge length of the unit cell and a value for the atomic radius of titanium.
Use the preceding information to predict the value of E for a silver-silver chloride electrode saturated with KCl. For the silver-silver chloride electrode, E° = 0.222 V
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