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Name and depict the structures of six compounds that have the formulaC6H7N, a five or a six membered ring, and are aromatic.
Bauxite, the principle ore used in the production of aluminum cans, has a molecular formula of Al2O3•2H2O. (a) Determine the molar mass of bauxite. (b) How many grams of Al are in 0.58 moles of bauxite?
Calculate the molecular weight of this gas if A sample of gas weighs 0.250 g and occupies a volume of 112 cm3 at STP?
assuming a pressure of 1.00 atm and a temperature of 25 celcius calculate the volume of hydrogen that should form from
From the following Information, calculate the standard change of enthalpy for the combustion of coal. Compound DeltaHf (kj/mol)
Debye-Huckel limiting law to calculate the activity coefficients. Calculate the percentage difference between the a) and b) solubility products for each
The two rings are heated to 66.1 C and dropped into a 15.0 mL of water at 20.5 C. When equilibrium is reached, the temperature of the water is 22.5 C. What is the mass of gold ring. (Assume a density of 0.998 g/mL for water.)
Compute the mass of CO2 produced in the combustion of 14 gallons of gasoline. Presume that gasoline consists of octane (C8H18), and has a density of 2.65 kg/gallon.
Three 10.00mL samples of the ascorbic acid solution necessary an average of 25.7mL of titrant for the complete reaction. Compute the mean molarities of the DCP solution
write a balanced equation that shows the reaction of iron with oxygen to form iron oxide which may be written fe2o3.
ill rate lifesaver to an answer to either of the followingalthough preferably both if its not too much trouble.
Suppose that you carry out an analytical procedure to generate a linear calibration curve like that shown in the figure below. Then you analyze an unknown and find an absorbance that gives a negative concentration for the analyte Select the true s..
what will be the final temperature of the system when thermal equilibrium is attained
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