Pure hexane has negligible ultraviolet absorbance above a wavelength of 200 nm. a solution prepared by dissolving 25.8 mg of benzene (c6h6, fm 78.11) in hexane and diluting to 250.0 ml had an absorption peak at 256 nm with an absorbance of 0.266 in a 1.000-cm cell. find the molar absorptivity of benzene at this wavelength.
Answers: 2
Chemistry, 22.06.2019 06:30
Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
Answers: 1
Chemistry, 22.06.2019 14:00
Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
Answers: 2
Chemistry, 22.06.2019 15:00
How is the shape of the poem “peer” connected to its meaning?
Answers: 2
Chemistry, 22.06.2019 21:30
How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh → na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l
Answers: 3
Pure hexane has negligible ultraviolet absorbance above a wavelength of 200 nm. a solution prepared...
Mathematics, 08.10.2019 19:00
English, 08.10.2019 19:00
Health, 08.10.2019 19:00
Geography, 08.10.2019 19:00
History, 08.10.2019 19:00
Mathematics, 08.10.2019 19:00
Mathematics, 08.10.2019 19:00
Physics, 08.10.2019 19:00
Mathematics, 08.10.2019 19:00