chemistry please help

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What is the energy (in J) of a photon of ultra-violet light that has a wavelength of 252 nm? The units for the answer are Joules. The error interval is 5%.

I did the problem and i got 7.893E-37
did i do correct or was i close

  • chemistry please help -

    The number is right. The exponent is not.
    E = 6.626E-34*3E8/252E-9 = ??

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