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given 4 asprin tablets 1moldm3 aq naoh 01moldm3 hcl phenolphthalein indicator a chemical balance distilled water and
write the chemical equation that represents the formation of the precipitate zinc hydroxide after zinc and iodine react
a 120g sample of granite initially at 830c is immersed into 260g of water initially at 210c what is the final
1calculate the number of moles of 24-pentanedione you will use density of 24-pentanedione 0976g ml-1 gmm 10011 g mol-1
calculate the boiling point and freezing point of a solution containing 999g ethylene glycol and 3202g of water
explain how elements combine to form a covalent bond and how each element involved fulfills the octet
a compound with the molecular formula c13h20 contains 3 rings this compound is permissible to react with hydrogen over
in certain cases calcium hydroxide as well as sulfuric acid react to produce calcium bisulfate and water while 00720
at 22 degc an excess amount of a generic metal hydroxide moh2 is mixed with pure water the resulting equilibrium
the subsequent is the overall balanced reaction for a lead-acid battery explain what is the balanced half-reaction that
we utilized the spectrophotometer to measure the values of od absorbtion of proteins left over from the iron exchange
the rate-determining step of the bromination of acetone engages breaking a carbon-hydrogen bond approximate the ratio
explain how much heat is absorbed when 2055 moles of nh3 g reacts in the presence of excess o2g to produce nog also h20
the ph of an acid solution is 512 compute the ka for the monoprotic acid the initial acid concentration is 0010
dsc analysis of a polystyrene sample illustrated no peaks in the temperature interval studied the dsc thermogram showed
before hydrazine came in to use to remove dissolved oxygen in the water steam boilers na2so3 was usually used for this
explain what is the concentration if hcl in the final solution when 100ml of a 5 m hcl solution in diluted with water
is it thermodynamically possible to transform solid sno2 into liquid sncl4 by reaction of the oxide with gaseous hcl
the product of this reaction tetraphenylcyclopentadienone might potentially react in a diels-alder reaction demonstrate
a 100 ml sample of 0075 m koh is titrated with 0125 m hcio4 solution compute the ph after the subsequent amounts of
aniline c6h5nh2 is a base that is utilized in the manufacturing of some perfumes explain what is the ph of a 0035-m
compute the individual concentrations of hmr and mr in a mixture measured with absorbency 0604 at 520 micrometers and
a waste having an ultimate cbod of 1000 mgl is discharged to a river at a rate of 2 m3s the river has an ultimate cbod