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A 500 ml sodium iodide solution was prepared by dissolving 30.7 grams of solid NaI in water. chlorine gas was bubbled through a 100 ml sample of this solution until the reaction was complete. how many grams of molecular iodine were produced?
Some species with two oxygen atoms only are the oxygen molecule, O2, the peroxide ion, O2-2 , the superoxide ion, O2-1 , and the dioxygenyl ion, O2+1 . Draw an MO diagram for each, rank them in order of increasing bong length, and find the number ..
Calculate the pH during the titration of 20.00 mL of 0.1000 M ammonia NH3(aq), with 0.1000 M HCl after 20.30 mL of the acid have been added. Kb of ammonia = 1.8 x 10-5.
How many grams of carbon dioxide (CO2) can form when a mixture of 4.95 g of ethylene (C2H4) and 3.25 g of oxygen is ignited. Assume complete combustion to CO2 and H2O.
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon plays in organic chemistry
Put in order the following molecules in terms of the Permeability of the molecule across a membrane by simple diffusion at pH 7.
Codeine, C18H21NO3, a commonly prescribed painkiller, is a weak base. A saturated aqueous solution contains 1.00 g codeine in 120 mL of solution and has a pH = 9.8. What is the Kb of codeine?
At 650K MgCO3(s)(----)MgO(s)+CO2(g) has Kp=0.026. A 10L container at 650K has 1.0 g of MgO(s) and CO2 at P=0.0260 atm. The containeer is than compressed to a volume of 0.100L. Find the mass of MgCO3 that is formed
calculate the heat change at 100 degrees Celsius and indicate whether heat was absorbed or released: a) joules to condense 10.0 g of steam; b) kilojoules to condense 76.0 g of steam; c) joules to vaporize 44.0 g of water; d) kilojoules to vaporize..
Given that the enthalpy of formation is -277.7 kJ/mol for C2H5OH(l) and -393.5 kJ/mol for CO2(g), find the enthalpy of formation for C6H12O6.
What would be the equilibrium pH value of rainwater if atmospheric SO2 gas were its only dissolved constituent? Assume that the fugacity (activity) of SO2 gas in the atmosphere is 5 x 10-9 bar
Provide a chemical based explanation for the observation that acid-base neutralization reactions are exothermic
How many moles of nitrogen are required to fill a 3.50 L tank at 25.0 oC to a final pressure of 8.74 atm
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