Chemistry, 02.12.2021 05:10 ssuereichard
Measure 10 grams of NaCl and add this to a beaker of 100 ml water. a. Stir the salt with a spoon to dissolve. Record how long it takes to dissolve all of the salt.
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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.
Answers: 3
Measure 10 grams of NaCl and add this to a beaker of 100 ml water. a. Stir the salt with a spoon to...
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