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How many stereoisomers of 2,3,4-trihydroxypentane are possible?
*Draw Fischer representation for all of the stereoisomers of 2,3,4-trihydroxypentane that may actually exist. Label the stereochemical relationships among all of them. Identify which structures are optically active.
How many pounds of coal (of heating value of 10,000 BTUs per pound) would be needed to provide the 100 quadrillion BTUs if the efficiency of conversion to electricity was 35%? What fraction of the US coal reserves (estimated at 250 billion short t..
Given the general equilibrium A + 2B C + D and the following concentrations, calculate the equilibrium constant. [A] = 0.2 M, [B] = 0.3 M, [C] = 0.1 M and [D] = 0.2 M
you are given two small bottles of white crystalline carbohydrates. one is label glucose and the other dextrose. what
if the initial pressures of the h2 and n2 in the flasks were 360 torr and 240 torr respectively what would be the final
Gold can be hammered into extremely thin sheets called gold leaf. If a 197-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters
A certain reaction has activation energy of 28.27 kJ/ mol. Explain at what Kelvin temperature will the reaction proceed 5.50 times faster than it did at 293 K
many people think salt is added to water to increase the boiling poing so pasta will cook faster. how much salt would
A student pipetted 10.00mL of 2.50x10-3mol/L iron (III) nitrate solution and then 2.00mL of 2.50x10-3mol/L NaSCN solution into a 25mL volumetric flask and added water up to the mark. From the absorbance of the solution, the concentration of (FeSCN..
State the advantage and disadvantage of a furnace compared with a flame in atomic absorption spectroscopy
Chlorine dioxide gas (ClO2) is used as a commercial bleaching agent. It bleaches materials by oxidizing them. In the course of these reactions, the ClO2 is itself reduced. What is the Lewis structure for ClO2?
Explain why each of other solvents is less desirable than the solvent you have chosen. Acetonitrile, dimethylformamide, hexane, methylene chloride are our solvent choices.
A balloon is filled to a volume of 55.0 ml at a temperature of 40.0 degrees Celsius. The balloon is then heated up at steady pressure to a temperature of 94.0 degrees Celsius. Explain what is the final volume of this balloon in liters
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