"The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10 - 50 km), but the part that reaches the earth can cause DNA mutations. The highest energy UVB photons have a wavelength of 320 nm. Calculate the energy of a single UVB photon (in Joules) and the energy of one mole of UVB photons (in kJ/mol)."

So, I'm pretty sure the first part of the question is unnecessary info. I think that I can calculate the energy in Joules by using E=hc/320nm. For that I'm getting 6.21 x 10^-19 J. I just need help finding the energy of one mole of UVB photons.

An explanation would be awesome, thanks in advance!

  1. 👍
  2. 👎
  3. 👁
  1. Your answer of 6.21E-19 J is correct. Obviously you used 320E-9 for the wavelength. For one mole just multiply that number by 6.02E23.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven

  2. Science

    1. Water bubbles up through a hot spring in Yellowstone National Park. What method of heat transfer is this? A. Conduction B. Radiation C. Solar D. Convection 2. Heat transferred between two substances in direct contact with each

  3. physics

    The higher the temperature of an object, the ____________________. A) Neither of these.B) shorter the wavelengths of radiation it emits.C) higher the frequencies of radiation it emits.D) Both of these.

  4. Earth science

    The greenhouse effect is a result of A. consumption of fruits and vegetables that produce a biofuel. B. absorption and radiation of energy in the hydrosphere. C. absorption and radiation of energy in the atmosphere. D. consumption

  1. Science

    What are the qualities of a greenhouse gas? Select the two correct answers. 1. Absorbs and re-emits infrared radiation 2. Three or more atoms in a molecule 3. Composed of single atoms not molecules 4. Transparent to infrared

  2. Which best describes the heat that arrives at Eart

    Which best describes the heat that arrives at Earth from the sun? can someone help me im in 6th grade and doing radiation from the sun quick check please helpppppppppppppppppp where is temper he is always right

  3. Physics

    Ultraviolet radiation is part of the electromagnetic spectrum that has wavelengths in the range of 200 nm to 400 nm. Given that the speed of all forms of electromagnetic radiation is 3.0 × 10^8 m/s, calculate the frequency range

  4. Science

    how is radiation different from convection and conduction? Radiation can travel through solids is what i'm thinking.

  1. Science

    1. Which of the following about the suns structure is true? A.The sun has a solid surface. B. The sun has an interior and an atmosphere. * C.The sun's is similar to Earth's; it has a core, mantle, and crust. D. The sun's outermost

  2. metreology

    Wien’s radiation law says that the wavelength of most intense radiation (λmax) emitted by a blackbody is inversely proportional to the absolute temperature (T) of the object. The surface of the Sun radiates as a blackbodyat a

  3. physics

    The sun is 1.5 1011 m from the earth. (a) Over what surface area is solar radiation spread at this distance? (b) What is the total power radiated by the sun? (The sun delivers energy to the surface of the earth at a rate of


    Infrared, ultraviolet, and visible radiation are all part of the electromagnetic spectrum. Arrange the three types of radiation in order of increasing energy.

You can view more similar questions or ask a new question.