Chemistry, 23.11.2020 20:00 UltimateGoal
A student was given a piece of metal with a mass of 85.0 g. She placed it
into a graduated cylinder containing exactly 150 mL of water. When she put
the metal into the water, the water level rose to 172 mL.
What is the volume of the piece of metal?
Answers: 1
Chemistry, 22.06.2019 05:50
Why doesn't heat added to water make the tempature rise above 100c
Answers: 2
Chemistry, 22.06.2019 11:00
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 23.06.2019 02:50
For questions 1 and 2, consider the following experimental data.hydrogen emission lines were detected at the following wavelengths (in nm): 121.6102.697.395.093.8question 1use the electromagnetic radiation classifications below and figure 1-1 in the introductory information for this lab (in the lab manual) to determine the nf value for the experimental data provided? wavelength, ? (nm) 650 700 550 600 400 450 500 visible spectrum wavelength, ? (m) 11 10 3 10 10 10 8 10 5 10 10 -10 10 9 10 10 10 10 -12 10 microwave radio infrared x-ray ultraviolet gamma 1020 1019 1018 1 1016 015 1014 01 12 109108 frequency, v (hz)a.1b. 2c. 3d. 4e. 5question 2using the data for the emission line with the longest wavelength, the known value of nf (from question 1 in this prelab), and the value of ni (deduced from the ? and nf values) calculate the rydberg constant for hydrogen (rh) in units of m-1.a) 1.097 x 10-11 m-1b) 5.921 x 107 m-1c) 1.097 x 10-2 m-1d) 9.252 x 106 m-1e) 1.097 x 107 m-1
Answers: 3
A student was given a piece of metal with a mass of 85.0 g. She placed it
into a graduated cylinder...
Health, 18.10.2019 15:30
History, 18.10.2019 15:30
Mathematics, 18.10.2019 15:30
Chemistry, 18.10.2019 15:30
History, 18.10.2019 15:30
Mathematics, 18.10.2019 15:30
English, 18.10.2019 15:30
History, 18.10.2019 15:30
English, 18.10.2019 15:30