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one way to remove lead ion from water is to add a source of iodide ion so that lead iodide will precipitate out of
what ions atoms or molecules are present after the following substances mix with water do not forget solubility rulesa
erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase
what mass of sucrose c12 h22 o11 should be combined with 522g of water to make a solution with an osmotic pressure of
the solubility of agcl s in water at 25 degrees celsius is 133 x 10-5 moll and its change in enthalpy of solution is
how does adding a small amount of a grignard reagent solution to a grignard reaction help the reaction get started hint
calculate the ph of a solution formed by mixing 2500 ml of 015 m nh4cl with 1000 ml of 020 m
suggest chemical reactions that could be used to identify the contents of four unlabeled bottles containing solutions
which of the following concentration measures will change in value as the temperature of a solution changesa mass
provide a detailed stepwise mechanism for the base- mediated transesterification of methyl benzoate with sodium
1 the ph of an acid solution is 552 calculate ka for the monoprotic acid with initial concentration of 010 m2 calculate
give the mz ratio that correspond to the molecular ion in the mass spectrum of
calculate the ph at the equivalence point for the titration of 0250m methylamine ch3nh2 with 0250m hcl kb of
suggest why dichromate or permanganate reverses the benzoin condensation when benzoin is treated with the
describe how you think humans detect odors and why certain substances smell the way that they do do not look up this
1 in your own words describe a chemical lsquofunctional group and indicate what importance they have in chemistry2
1 in a wedge-dash chemical structure drawing what does the wedge line represent and what does the dashed line
in the mercury emission spectrum three emission bands were observed which were purple green orange and red in the
36ml of m-xylened0864 gml is reacted with 06g of pthalic anhydride and 02 g of alcl3 to obtain the product the actual
write a mechanism for the formation of phenacetin from acetaminophen and
at room temperature soln of caoh2 7409 gmol contains 016 g of caoh2 per 100 ml of solution what is the ph of this
when 5 drops of 010 m naoh were added to 20 ml of the buffer in problem 3 the ph went from 360 to 371 write a net ionic
formic acid hfor has a ka value equal to about 18 10-4 a student is asked to prepare a buffer having a ph of 360 from
a solution of a weak acid was tested with the indicators used in this exeriment the colors observed were as follows
write an equation for the diels- alder reaction of cyclopentadiene and 14