Answer:
Ratio of wavelength will be 1.1982
Explanation:
We know that velocity in any medium is given by , here c is the velocity of light and n is the refractive index
We know that wavelength is given by , from the relation we can see that wavelength is inversely proportional to the refractive index
We have given refractive index of carbon disulfide = 1.632
And refractive index of ethyl alcohol = 1.362
So ratio of wavelength of ethyl alcohol and carbon disulfide =
The atomic number Z of an element is the number of protons it contains (and in an atom it is equal to the number of electrons). The mass number M is close to the mass of one mol of the substance but it is defined as the number of protons and neutrons in the nucleus of the atom; there, the main mass of the atom is contained. Hence, N=M-Z=74-36=38(since M counts both protons and neutrons while Z only protons). Thus, it has 38 neutrons.
C. a cello playing music at the concert
Answer:
1) 16.88 atm
2) 34.47 atm
Explanation:
Data:
Volume=0.700L
Temperature = 300K
Number of moles=0.480 mol
Ideal gas constant=0.082057 L*atm/K·mol
1) The ideal gas law is:
(1)
with P the pressure, T the temperature, n the number of moles, V the volume and R the ideal gas constant , so solvig (1) for P:
2) The vander Walls equation is:
solving for P
Auhmm, ms/mr. your question was too blurry
Explanation:
plss can u kinda repost it?