Chemistry, 15.09.2021 22:50, miriammayo12345
A hydrocarbon has a percentage composition by mass of 87.80%carbon, the rest is hydrogen. If its relative molecular mass is 82,determine the molecular formula of the hydrocarbon​
Answers: 1
Chemistry, 22.06.2019 01:30, adrian08022
When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)
Answers: 2
Chemistry, 22.06.2019 14:00, hammackkatelyn60
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
A hydrocarbon has a percentage composition by mass of 87.80%carbon, the rest is hydrogen. If its rel...
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