Chemistry, 06.08.2021 14:00 portielesc
7. Determine the molecular formula of hydrocarbon which contains 85.6% carbon and has a molar mass of 84 g mot.
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Chemistry, 23.06.2019 04:40
6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
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The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?
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If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes or no?
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7. Determine the molecular formula of hydrocarbon which contains 85.6% carbon and has a molar
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