Practice i. four standard solutions of a hydrated copper complex are prepared from a 5.0 m stock solution. each standard solution is prepared by measuring a different volume of stock (indicated in the table below) that is diluted to a volume of 10.00 ml·the absorbance of each standard solution is measured at 610 nm and the absorbance is recorded in the data table below. the absorbance of a hydrated copper complex of unknown concentration is measured to be 0.579. calculate the concentration of each of the four standard solutions and determine the concentration of the unknown solution. volume of concentration of 5.0 m stock 10.00 ml standard standard 0.40 ml 0.60 ml 0.80 ml 1.00 ml absorbance 0.31 0.49 0.67 0.84 2 2. four standard solutions of potassium permanganate (kmno,) are prepared from a 1.00 mm stock solution. each standard solution is prepared by measuring a different volume of stock (indicated irn the table below) that is diluted to a volume of 25.00 ml. the absorbance of each standard solution is measured at 520 nm and is recorded in the data table below. the absorbance of an unknown kmno solution is measured to be 0.153. calculate the concentration of each of the four standard solutions and determine the concentration of the unknown solution. volume of standard 1.0 mm stock concentration of 25.00 absorbance ml standard 0.50 ml 1.00 ml 2.50 ml 5.00 ml 0.053 0.101 0.252 0.461
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Chemistry, 21.06.2019 21:30, taralynnn8870
Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry
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Chemistry, 22.06.2019 00:30, lasagnafoe
Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?
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Chemistry, 22.06.2019 19:00, Farhan54019
Which change to the system wood cause the freely-moving piston to lower?
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Practice i. four standard solutions of a hydrated copper complex are prepared from a 5.0 m stock sol...
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