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problem- what is the concentration of hydroxide ion in a 018m aqueous solution of hydroxylamine nh2oh what is the ph
problem- calculate the entropy change for the universe for the reaction h2o2l yields h2o2g at 158 degrees celsiusi am
problem- a for 4900ml of pure water calculate the initial ph and the final ph after adding 0020mol of hcl express your
problem- in a chemical analysis the percent transmittance of a compound is measured to be 258 in a cell with a path
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problem- a sealed chamber contains 1604 g of ch4 and 6800 g o2 the mixture is ignited how many grams of co2 are
problem- consider the acetic acid buffer system with acetic acid ch3cooh and its salt sodium acetate nach3cooch3coohaq
problem- two 200ml samples one 0100 mhcl and the other 0100 mhf were titrated with 0200 mkoh answer each of the
problem- a 1200 g piece of metal is heated to 410oc and then dropped into an insulated container filled with 500 g of
problem- a 2135 sample of gaseous chlorofluorocarbon occupies a volume of 3155 ml at 7392 mm hg and 261 degrees c
problem- you are using the following procedure from your lab instructions to determine the copper content of a brass
problem- a wooden boat discovered just south of the great pyramid in egypt has a carbon-14carbon-12 ratio that is 715
problem- a spectrophotometer was calibrated with a 6840 10-4 m in cu cu-neocuproine solution this calibration was
problem- at a ph of 4 the cu-neocuproine complex formed in the liquid-liquid extraction experiment has a partition
problem- redox titrations are used to determine the amounts of oxidizing and reducing agents in solution for example a
problem- a reaction vessel contains 100g of co and 100g of o2 how many grams of co2 could be produced according to the
problem- calculate the mocular weight of an unknown substance of 02064 grams of solid was added to 2500 ml of
problem- need ir interpretationi know it has a carbonyl there is moderate signal at 1715 and an echo at 3419there are 3
problem- determine the bond order for the following species f2-2 f2-1 f2 f22 list the species in the order of
problem- a new potential heart medicine code-named x-281 is being tested by a pharmaceutical company pharma-pill as a
problem- the lowest electronic transition frequently corresponds to an electron in the highest occupied molecular
problem- the explosive nitroglycerin c3h5n3o9 decomposes rapidly upon ignition or sudden impact according to the
problem- when 0433g of biphenyl c12h10 undergoes combustion in a bomb calorimeter the temperature rises from 262acircc
problem- how do you use this speculative chemical equation cuso4 x 5h2o cuso4 h2o to predict by calculations what the
problem- suppose you have a solution of 300 ml of 0450 m mgcl2 calculate the number of moles of just chloride ion in