Chemistry, 25.12.2019 04:31 122333444469
Quinine (c20h24n2o2) is the most important alkaloid derived from cinchona bark. it is used as an antimalarial drug. for quinine pkb1 = 5.1 and pkb2 = 9.7 (pkb = −log( only 1.0 g of quinine will dissolve in 1900.0 ml of water. calculate the ph of saturated aqueous solution of quinine. consider only the reaction q + h2o equilibrium reaction arrow qh + + oh? described by pkb1, where q = quinine.
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Chemistry, 21.06.2019 19:30, umimgoingtofail
Motivation cannot be developed with practice; a person either possesses it or they do not.
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Chemistry, 21.06.2019 22:30, stefaniethibodeaux
Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
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Chemistry, 22.06.2019 08:40, jaueuxsn
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
Quinine (c20h24n2o2) is the most important alkaloid derived from cinchona bark. it is used as an ant...
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