7.
A compound is 19.3% Na, 26.9% S, and 53.8% 0. Its molar mass is 238 g.
What is its molecul...
Chemistry, 03.06.2021 15:30, linag969p9xeno
7.
A compound is 19.3% Na, 26.9% S, and 53.8% 0. Its molar mass is 238 g.
What is its molecular formula?
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Answers: 2
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According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead
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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
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