Chemistry, 16.10.2020 07:01 wrightlilybug07
Determine the empirical formula for a compound that contains 46.3 g of lithium and 53.7 g of oxygen.
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The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
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How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
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Determine the empirical formula for a compound that contains 46.3 g of lithium and 53.7 g of oxygen....
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