college: Chemistry

posted by .

Hi can someone help me with this other problem from my homework,
The thermochemical equation is
C6H12O6(s)+ 6O2(g)--> 6CO2(g)+ 6H2O(g)
reaction is -2539.01 kJ/mol

Part B) What is the minimum number of photons with wavelength of 645nm needed to prepare 135 grams of glucose?

Please give me some good information so, I will know how to do it on my own.

  • college: Chemistry -

    1) calculate the energy in a photon in 645 nm (Planck's equation).
    2) determine the moles in 135g glucose.
    3) determine the energy required: molesglucose*Reactionenergy/mole
    4) divide the energy required by the energy in one photon.

  • college: Chemistry -

    Work out the energy associated with each photon of wavelength 645 nm using
    E=hf (you will need to convert 645 nm to a frequency first)

    Calculate the molecular mass of glucose

    Calculate the number of moles of glucose in 135 g

    Multiply 2539.01 kJ/mol by the number of moles to get the kJ required.

    divide the energy required by the energy of each photon to get the minimum number of photons.

  • college: Chemistry -

    Don't you go back and read your posts? I solved this problem for you the first time you posted. This is a duplicate post and you took the time of THREE volunteers to answer the same one question.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    How do you balance this equation? C6H12O6 + O2 --> H2O + CO2 Thanks! C6H12O6+6O2=6H2O+6CO2 (that should be right!) C6H12O6 + 6O2 --> 6H2O + 6CO2 Thank you! Thank you too!
  2. Chemistry

    The equation for respiration reaction is given by: C6H12O6 + 6O2 ------> 6CO2 + 6H2O + Energy Calculate the amount of water formed from oxidizing 18.0 grams of glucose in the presence of excess oxygen.
  3. Chemistry

    Please help me with this question from my homework package What is the minimum number of photons with wavelength 645nm needed to prepare 135 grams of glucose?
  4. Chemistry

    Given the equation: 6CO2(g) + 6H2O(l) -> C6H12O6(s) + 6O2(g) What is the minimum number of liters of CO2(g), measured at STP, needed to produce 32.0 grams of oxygen?
  5. chemistry

    1)how many molecules of water are needed to produce 6 molecules of C6H12O6 according to the equation 6CO2(G)+6H2O(L)+energy TO C6H12O6(S)+6O2(G)?
  6. science

    1)how many molecules of water are needed to produce 6 molecules of C6H12O6 according to the equation 6CO2(G)+6H2O(L)+energy TO C6H12O6(S)+6O2(G)?
  7. Chemistry

    The Energy from glucose is obtained from the oxidation reaction C6H12O6 + 6O2 --> 6CO2 + 6H2O How would a similar reaction look for Sucrose?
  8. Chemistry PLEASE HELP!!

    energy from glucose is obtained from this equation when it is oxidized in the body C6H12O6 + 6O2 --> 6CO2 + 6H2O What is the catalyst in this equation?
  9. College Chemistry

    Animals break down glucose (C6H12O6) as a source of energy according to the following overall reaction. C6H12O6(aq) + 6O2(g) ¨ 6CO2(g) + 6H2O(l) What mass in grams of CO2(g) is produced from the reaction of 15.0 g of glucose?
  10. Chemistry

    In photosynthesis, glucose, C6H12O6, and O2 are produced from CO2 and H2O. Glucose from starches is the major fuel for the body. 6CO2(g)+6H2O(l)+680kcal⟶ C6H12O6(aq)+6O2(g) How much heat, in kilojoules, is needed to produce …

More Similar Questions