Number of moles :
n = mass solute / molar mass
n = 20 / 18
n = 1.111 moles
Therefore:
Molarity = moles solute / volume
Molarity = 1.111 / 30 => 0.37 M
Answer:Nothing, the photon just bounces off the surface.
Explanation:
According to Albert Einstein, a photoelectron can only be emitted from a metal surface when the energy of the incident photon is greater than the work function of the metal.
In the scenario described in the question, the work function of the metal is greater than the energy of the photon. Hence, the photon just bounces off the metal surface without emitting any electron.
Love how the subject is chemistry HAHA. I live in FL :/
