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Define A mixture of benzoic acid, benzyl alcohol, and biphenyl is spotted on a silica gel TLC plate and developed in a dichloromethane-cyclohexane solvent mixture. Forecast the relative Rf values for the three components in the sample.
Current annual energy consumption in the United States is 99.3 quads. Assume that all this energy is to be generated by burning CH4(g) in the form of natural gas
a solution of .85g of a unknown organic compound in 100g ofbenzene has a freezing point of -5.16c. what is the molality
Explain what quantity of heat energy, in joules, must be released by mercury if 1.80 mL of mercury is cooled from 23.0°C to -38.8°C also then frozen to a solid? The density of liquid mercury is 13.6 g/cm3 and its specific heat capacity is 0.140 J/..
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.
If 6.06 L of O2 gas is collected over water at 250C (vapor pressure = 23.8 torr) and a barometric pressure of 702 torr, what is the mass of H2O2 (MM = 34.02 g/mole) decomposed?
Given the following reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of CH4 is required to completely react with 100 grams of oxygen.
the background section describes why you want the bleach to be far in excess of the dye. state how much greater the
How does Ksp govern the dissolution of an insoluble solid. Determine the number of moles if IO3- simply by knowing the number of moles of S2O3 2. Do you expect the Ksp to be a large number or a small number
How many moles of ammonia are produced when 20 moles of hydrogen react with 40 moles of nitrogen
In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions), which affects lattice energy (a measure of the attractive force holding those ions together).
If 14.5 mL of 1.50 M potassium dichromate is added to a 50 mL volumetric flask and diluted to the mark, what is the resulting concentration of potassium ions
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is tripled and that of Br- is tripled? Just put in the number as a whole number or fraction.
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