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What are the degeneracy of the first six levels for an electron in a cubicul (3-dimensional) box with box length, L = L(x) = L(y) = L(z) = 1.00pm
if 25.0 g of a solution of potassium iodide transparent and colourless and 15.0 g of a solution of lead nitrate
What characteristic H NMR absorptions would be expected in the aliphatic region for 9-hydroxyfluorene
Assume you have a solution containing two volatile liquids. Given the data for liquid A: MM = 56.89 g/mole, partial pressure = 0.903 atm and for liquid B: MM = 14.52 g/mole, partial pressure = 0.995 atm
Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture containing mostly a dextrorotatory ketone A and a trace of an optically inactive isomer B
a 32.85-g sample of a solid is placed in a flask. toluene in which the solid is insoluble is added to the flask so that
Calculate the moles of N2 that will be in 224 L at STP and the partial pressure of O2 in Pa for air at 2.50 atm pressure
What mass percent of ethylene glycol in water must be used to reduce the freezing point of the mixture to -5.0degrees c?
calculate the empirical formula for a chemical compound which gives the following analysis 12.6 percent lithium 29.2
1.when we say that something gives us energy what does that mean? what is a biological definition of energy?nbsp2.what
Use the following data on oxygen solubility to calculate the enthalpy of reaction for oxygen dissolving into water.
Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract.
when separated from a water solutioncuso4 forms a hydrate with 5 water molecules per formula unit. if 45 g of anhydrous
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