(Answered) How much energy will it take to remove

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How much energy will it take to remove only one electron on the surface of Nickel? If you hit the surface of Nickel with a photon that has a frequency of 1.56 x 10⁹ Mhz, what will the wavelength of that ejected electron be in nanometers?

If you collect hydrogen gas over water at a temperature of 85^OC, what is the volume of just the water if the pressure of hydrogen is 1.23 atm and the grams of hydrogen was 2.6.

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