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How many stereoisomers are possible for each of the following structures? Draw them, and name each by the R-S and E-Z conventions.
A. 4-methyl-2,5-heptadiene
b. 1,2,5-trichloro-3-hexene
How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol?
when sodium azide , NaN3 , is activated in an automobile air bag , nitrogen gas and solid sodium are produced . if 0.0500 moles of NaN3 react , what mass , in grams , of nitrogen would result ?
Calculate the molar solubility of Mn(OH)2 in moles/L and in g/L. What would happen to the solubility of Mn(OH)2 when 0.02 M NaOH is added to the solution. Calculate the new solubility after the addition of NaOH.
a hemoglobin A1c that is slightly lower than normal. a slightly lower than normal release of insulin in reps once to increases in glucose
How would excess solvent affect the melting point. How will impurities affect the melting point.
if you used 8900 kilojoules you expend in energy in one day to heat 49000g of water at 19 C what would be the rise in temperature.
a sample of he gas 3.0 l at 5.6 atm and 25degc was combined with 4.5 l of ne gas at 3.6 atm and 25degc at constant
Identify which pairs of all of the stereoisomers of 2-chloro-3-methylpentane are enantiomers, diastereomers, and/or meso compounds.
A) By what factor will the pressure of sulfuryl chloride decrease after 5 half lives. Note: The answer wants this value: (340. torr)/value = final pressure after decay. The rate constant for the decomposition at 660 K is 4.5 10-2 s-1.
When 1.00 g of urea (CO(NH2)2) is dissolved in 200g of solvent A, the freezing point is lowered by 0.250C. When 1.50 g of the nonelectrolyte Y is dissolved in 125 g of the same solvent
A 10.00 g sample of sucrose (C12H22O11) was dissolved in 200.0 g H2O. What will be the vapor pressure of this solution at 100C? Sucrose is non-disscociated, non-volatile solute.
Calculate the change in entropy when 5.0g of water at 75.2 degrees Celsius is converted to ice at -5.5 degrees Celsius. During the process the pressure remains constant at 1.00 atm.
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