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Write the chemical equation and the Kb expression for the reaction of each of the following bases with water: ammonia, NH3; hydrogen sulfide, HS- ; hypochlorite ion, ClO- .
A sample of gas weighs 3.718g and has a volume of 1.4L at .845 torr and 26.0 C. What is its molar mass?
3230 J of heat are added to a 29.7 g sample of iron at 29 degree C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g. K
Using the technique of the previous problem ?E was found to be -2,000.00 kJ/mol at 298 K for an unknown liquid hydrocarbon. In another experiment it was determined that for each mole of hydrocarbon
The dimerization of ClO is second order in ClO. Use the following data to determine the value of k and the half-life at 350 K
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon.
select (a) best and (b) poorest electrical conductors from the following solutions and explain the reason for your choices: 0.10 M NH3, 0.10 M NaCl, 0.10 M CH3OOH(acatic acid), 0.10 M CH3CH2OH(ethanol)
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
Determine which flask has the smallest amount of water vapour and which one has greater vapor pressure of H 2 O?
Styrene, phenylethene, is treated with H3PO4, an acid whose conjugate base is a poor nucleophile.
State the number of grams of water that can be obtained by the reaction
What is it about the structures of poly(acetylene) and poly(p-phenylenevinylene), and not poly(1-butene), that allows these polymers to conduct electricity? Use discussions of hybridization, pie bonding, and resonance as the basis for your argumen..
calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of 88.0 grams of propane, C3H8 (44.0 g/mol).
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