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Chemistry, 23.06.2019 03:20
High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03ร108 pa , what is its running pressure in torr?
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Chemistry, 23.06.2019 09:00
What properties would have caused early researchers to name hydrogen "inflammable airโ
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Chemistry, 23.06.2019 10:30
The element chlorine has two stable isotopes, chlorine-35 with a mass of 34.97 amu and chlorine-37 with a mass of 36.95 amu. from the atomic weight of cl = 35.45 one can conclude that:
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Rubbing alcohol is 70.% isopropyl alcohol by volume. how many ml of isopropyl alcohol are in a 1 pin...
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