Physics, 27.09.2019 02:20 ashtynbursiaga
Theophylline, an asthma medicine, is to be prepared from an elixir with a drug concentration of 5 mg/ml and a cherry-flavored syrup that is to be added to hide the taste of the drug. how much of each must be used to prepare 100 milliliters of solution with a drug concentration of 2 mg/ml?
Answers: 2
Physics, 21.06.2019 13:10
An unknown substance has a melting point of 1064 ∘c, is insoluble in water, conducts electricity as a solid, and is hard. given these properties, which of the following are possible identities for the unknown substance? check all that apply. view available hint(s) check all that apply. sio2 f2 au kbr
Answers: 3
Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
Theophylline, an asthma medicine, is to be prepared from an elixir with a drug concentration of 5 mg...
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