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Use the following data to calculate the enthalpy of solution, DeltaH soln for sodium hydroxide, NaOH:
DeltaH(Lattice)= -425.9 kj/molDeltaH(Hydration)= -469.2 kj/mol
Which of the following has only a single peak in the proton NMR spectrum
Compare the stabilities of an allylic anion and a homoallylic anion, each with the formula C6H11-. An allylic anion has the negative charge on an atom adjacent to the double bond.
a polysaccharide of unknown structure was isolated subjected to exhaustive methylation and acid hydrolysed. analysis of
In an experiment for measuring water hardness in a water sample, using Atomic Absorption Spectrophotometry, I obtained a value of 173.74 ppm hardness for my water sample.
Draw the molecular orbital diagram for CO. Based on your diagram, why does CO always bond through the carbon and not the oxygen atom?
Define dipole moment. Distinguish between polar and nonpolar bonds.Give an example of each
Decide whether or not each of the following metals dissolves in 1M HCl. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
If CO2 is not removed by boiling after the addition of HCL, how will this affect the determination of moles of base per gram of antacid tablet?
A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 °C and 90 kPa, find the molecular formula for this compound
Zinc is used to make galvanized iron pipes. these pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used.
Calculate brightness of a wavelength undergoing Rayleigh scattering.
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