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What is the formula for the principle molecular or ionic species present in a aqueous solution of NaCl?
Calculate the amount of water per gram of compound required to steam distill nitrobenzene (MW 123.11), which has an azeotrope temperature of 99 oC.
For the following pair of polymers, state whether or not it is possible to determine whether one polymer is more likely to crystallize than the other. 1) linear and syndiotactic polypropylene
A room contains 47kg of air. How many kilowatt-hours of energy are necessary to heat the air in the house from 7 degrees celsius to 26 degrees celsius
Which families of organic compound does butane transform to in hydrogenation reaction? If no reaction would likely to occur, choose "No reaction."
Vanadium metal crystallizes in a body centerd cubic crystal lattice. The length of a unit is 0.305nm. Calculate the density of vanadium in g/cm^3
S8 also known as orthorhombic sulfur, what type of chemical bonds does S8 have? what type of crystal is this?
The reaction of water and coal at a high temperature produces a mixture of hydrogen and carbon monoxide gases. This mixture is known as syntheses gas (or syngas). How many grams hydrogen gas can ne formed form the reaction 135g of water with exces..
Whereas B has been determined to be the kinetic product, C has been determined to be the thermodynamic product. Complete potential energy diagrams for the formation of B and C by sketching the energy curve for each product.
Helium is collected over water at 25°C and 1.00 atm total pressure. What total volume of gas must be collected to obtain 0.563 g of helium? (At 25°C the vapor pressure of water is 23.8 torr.)
Write all of the resonance structures for o-bromonitrobenzene. Draw a structure for the octahedral complex from the reaction of p-chlorobenzohydroxamic acid with ferric chloride.
D-(-)-Menthol can be isolated from the peppermint plant and is responsible for the characteristic flavor and taste of peppermint. The structure of (-)-menthol is
the density of the fuel is 0.78 g/mL the initial temperature of the water is 25 degrees celcius and the standard enthalpy of formation is -224.4 kJ/mol
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