Molar mass CH4 = 16.0 g/mol
* number of moles:
932.3 / 16 => 58.26875 moles
T = 136.2 K
V = 0.560 L
P = ?
R = 0.082
Use the clapeyron equation:
P x V = n x R x T
P x 0.560 = 58.26875 x 0.082 x 136.2
P x 0.560 = 650.76
P = 650.76 / 0.560
P = 1162.07 atm
The answer is Ra
Atomic number for Be is 4
Atomic number for Mg 12
Atomic number for Ra 88
Atomic number for Ba 56
This is an incomplete question, the image for the given question is attached below.
Answer : The wavelength of photon would be absorbed, 
Explanation :
From the given diagram of energy we conclude that,
Energy at ground state, A = 400 zJ
Energy of 2nd excited state, C = 1050 zJ
Now we have to calculate the energy of the photon.
Now we have to calculate the wavelength of the photon.
Formula used :
As, 
So, 
where,
E = energy of photon = 
= frequency of photon
h = Planck's constant = 
= wavelength of photon = ?
c = speed of light = 
Now put all the given values in the above formula, we get:
Therefore, the wavelength of photon would be absorbed,
Answer:
weigh it and divide the weight by the molecular weight. :) good luck!!
Explanation:
A ice cube melts if compressed, because increasing the pressure decreases the melting point of water.
Ice has an open crystalline structure.
This structure collapses to a smaller volume when the ice melts to form liquid water.
Ice and water are at equilibrium at 0 °C.
If you apply pressure at 0 °C, the ice will melt in an attempt to relieve the stress and get to a smaller volume.
