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S)-2-butanol reacts with potassium dichromate (K2CrO4) in aqueous sulfuric acid to give A(C4H8O). Treatment of A with ethylmagnesium bromide in anhydrous ether gives B(C6H14O).Draw the structure of B.
Include stereochemistry using the single up & single down drawing tools, and draw only the hydrogens at chiral centers and at aldehyde carbons.
A bicycle tire is filled with air to a pressure of 611 kPa at a temperature of 19 degrees C. Riding the bike on a hot day increases the temperature of the tire to 58 degrees C.
A piece of silver (25 g) is heated to 100 degrees celsius, then dropped into 42.5 g of water with a temperature of 21.7 celsius. Assume they come to the same temp, what is the final temp of the silver and water? (Molar capacities: Ag 25.351 J/mol*..
Calculate the work, heat, energy and enthalpy change upon: a) expansion by 3.3 L at p=const (isobaric). b) isothermal expansion by 3.3. L against a constant external pressure of 30.0 kPa c) reversible isothermal expansion by 3.3 L.
What is Change in Enthalpy for the formation of 1 mol of acetylene. (c) Which is more likely to be thermodynamically favored, the forward reaction of the reverse reaction
During a chemical change or reaction, a substance is changed into one or more different substances. The _________ composition and the physical
The generic metal hydroxide M(OH)2 has Ksp= 6.64x10^-18. (Note: In this particular problem, because of the magnitude of the Ksp and the stoichiometry of the compound, the contribution of OH from water can be ignored. However, this may not always b..
the following standard gibbs energy of formation values in kJ/mol: CH4, 50.7; H2O, -228.6; CO2, -394.4 calculate the standard free energy change for the combustion of CH4
at 50 degrees celsius the vapor pressure for methanol and ethanol are 406 and 222 torr respectively. given a mixture at
The labels of bottles that contain barium hydroxide, hydrochloric acid and sodium carbonate had fallen off. When the contents of the bottle A were mixed with B's Contents, a white precipitate formed, A with C yielded a gas and B with C gave heat.
N2 +3H2= 3NH3 What is the limiting reactant/ maximum number of moles of NH3 formed from 2.0 moles of n2 and 2.0 moles of H2
What is the balanced equation for a reaction between potassium iodide and lead II chloride
Explain how molecular spectroscopy can be used for either the measurement or identification of a molecule.
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