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What mass of carbon dioxide (in kg) is produced upon the complete combustion of 18.9L of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621 . (: Begin by writing a balanced equation for the combustion reaction.)
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 50% when [ligand] = 10-7 M
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
A sample of CaCO3 with a mass of 4.74 g is placed in 500.0 mL of 0.63M HCl, forming CaCl2, H2O, and CO2. What mass in grams of CO2 is produced
A biochemist is trying to purify the enzyme hexokinase from a bacterium that normally grows in the Arctic Ocean at 5C. In the next lab
What is the approximate mass percent of cholesterol in a blood sample having a cholesterol level of 176? Why can you not give a more precise answer
There are two different schemes you could use to synthesize 4-ethyl-3-heptanol using a Grignard reagent and a carbonyl-containing compound
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
Calculate the distances NH# gas and HCL gast would travel in this experiment if a 100.0-cm tube were used, based on the accepted molar masses of the two gases.
what is the pH of the benzoic acid solution prior to adding sodium benzoate? B. how many grams of sodium benzoate should be added to prepare the buffer? neglect the small volume change that occurs when the sodium benzoate is added.
The ionic radii of Cs+=.174nm, radius of Cl-=.181nm, and the coordination numberof each ion=8, Calculate the lattice parameter
The solution is connected to a SCE referece cell (Esce = 0.241V) and a potential of Ecell= 1.169 V is measured. determine the concentration of BrO3 (aq) in the solution
20.00 ml of .150 M HC2H2O2 solution is titrated with .150 M NaOH. What is the pH at the equivalence point? Ka of HC2H2O2 = 1.8*10^-5.
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