Chemistry, 25.10.2019 01:43 sbhishop19
Ecdysone is an insect hormone that controls molting. in a polarimetric experiment, 70.00 mg of ecdysone was dissolved in 10.00 ml of chloroform, and the solution was placed in a 2.0 cm path-length cell. the optical rotation was measured at 20 °c using the yellow sodium d line near 589 nm wavelength. if the rotation observed was of +0.087°, calculate the 20davalue for ecdysone.
Answers: 3
Chemistry, 21.06.2019 21:30
Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water
Answers: 1
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
Chemistry, 22.06.2019 12:30
In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
Answers: 3
Chemistry, 22.06.2019 12:50
What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate
Answers: 1
Ecdysone is an insect hormone that controls molting. in a polarimetric experiment, 70.00 mg of ecdys...
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