Chemistry, 27.12.2019 07:31 zanaplen27
Adrinking water supply is suspected of being contaminated with lead. samples of water aspirated directly into an air-acetylene flame gave an absorbance of 0.68 at 283.3nm. standard solutions containing 0.5 and 1.0 ppm were found to exhibit absorbances of 0.43 and 0.86 respectively. assuming the beer-lambert law is obeyed calculate the concentration of lead within the water sample. a. 79. oppm b. 0.79ppm c. 0.43ppm d. 0.96ppm e. 0.92ppm noeullib noilgoeps noods whaooah
Answers: 2
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The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.
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Adrinking water supply is suspected of being contaminated with lead. samples of water aspirated dire...
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