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problem- upon decomposition one sample of magnesium fluoride produced 164kg of magnesium and 258kg of fluorine a second
problem- a solution of lead sulfate pbso4 contains 0425 g of lead sulfate in 1000 g of water what is this concentration
problem- a sample of 3000 g of drinking water is found to contain 38 mg pb what is this concentration in parts per
problem- helium gas 30 x 10 -4 g is dissolved in 200 g of water express this concentration in parts per millionexplain
problem- a solution is prepared by dissolving 125 g sucrose c12h22o11 in 135 g h2o calculate the mass of sucrose in
problem- a solution is prepared by dissolving 500 g of cesium chloride cscl in 500 g water calculate the mass of
problem- how do you make chloro-cyclohexane starting options 3-methyl-1-butonal benzyl alcohol cyclohexanol
problem- determine the ionic strength for each of the following solutions assume complete dissociation of each salt and
problem- 0550 l of 0470 m h2so4 is mixed with 0500 l of 0220 m koh what concentration of sulfuric acid remains after
problem- naoh is added to sea water containing 0050 moles per litre of mg 2 ion until the ph reaches 110 a certain
problem- the base-dissociation constant kb for pyridine c5h5n is 14 x 10-9 the acid-dissociation constant ka for the
problem- the pka of acetic acid ch3cooh is 474 a buffer solution was made using an unspecified amount of acetic acid
problem- a 250 ml sample of 0723 m hclo4 is titrated with a 027 m koh solution the h3o concentration after the addition
problem- five expanded structures lysine arginine glutathione glu-gly-met-leu and arg-thr every amino group is
problem- how many grams of precipitant will form when 30ml of 2m calcium hydroxide is added to a solution containing
problem- using general tendencies and the chart given in the introduction predict the most likely mode of decay of each
problem- what is the activity coefficient for each ion at the given ionic strength click here for an activity
problem- if 600j of heat energy are added to a system in energy state e1 and the system then does 450j of work on its
problem- calculate the standard molar enthalpy for the reaction of calcium sulfide and water to produce elemental solid
problem- calculate the masses of oxygen and nitrogen in mg that are dissolved in 15 l of aqueous solution in
problem- an element crystallizes in a face-centered cubic lattice what would be the length of the edge and density of
problem- carbon-14 has a half-life of 5700 years how old to the nearest integer is a mummy that has lost 53 of its
problem- when a malonic ester synthesis is performed using excess base and 14-dibromobutane as the alkyl halide an
problem- from its amino acid sequence draw the form of aspartame that is expected to predominate at physiological ph
problem- carry out the following calculation making sure that your answer has the correct number of significant