Chemistry, 07.12.2019 03:31 djfluffyman999
You are performing a gradient elution and are instructed to begin with a low polarity solvent (petroleum ether) and continue to increase solvent polarity with mtbe. why are the mobile phases added in order of increasing polarity rather than in the order of decreasing polarity?
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Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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In which of these cases are the two wave points considered to be in phase with each other?
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In apex! a liquid heated beyond a certain temperature becomes
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The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
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You are performing a gradient elution and are instructed to begin with a low polarity solvent (petro...
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