What percentage of the naphthalene molecules emitted photon

Assignment Help Chemistry
Reference no: EM13706491

Problem- A 5.00 mL ampule of a 0.100 M solution of naphtalene in hexane is excited with a flash of light. The napthalene emits 15.5 J at an average of 349nm. What percentage of the naphthalene molecules emitted a photon?

I saw a similar question from this site but I want specific explanation

Reference no: EM13706491

Questions Cloud

Define ammonium nitrate is added to an adiabatic calorimeter : Problem- Ammonium nitrate is soluble in water. 16.50g of ammonium nitrate is added to an adiabatic calorimeter containing 100.0 g of water initially at 22.0C. The final temperature of the solution is 14.1C.
Calculate the mass of the electron : Problem- A metal whose threshold frequency is 6.71 * 10^14 s^-1 emits an electron with a velocity of 6.95 * 10^5 m/s when radiation of 1.01 * 10^15 s^-1 strikes the metal. Use these data to calculate the mass of the electron
Calculate the mass of the electron : Problem- A metal whose threshold frequency is 6.71 * 10^14 s^-1 emits an electron with a velocity of 6.95 * 10^5 m/s when radiation of 1.01 * 10^15 s^-1 strikes the metal. Use these data to calculate the mass of the electron
Calculate the mass of the electron : Problem- A metal whose threshold frequency is 6.71 * 10^14 s^-1 emits an electron with a velocity of 6.95 * 10^5 m/s when radiation of 1.01 * 10^15 s^-1 strikes the metal. Use these data to calculate the mass of the electron
What percentage of the naphthalene molecules emitted photon : Problem- A 5.00 mL ampule of a 0.100 M solution of naphtalene in hexane is excited with a flash of light. The napthalene emits 15.5 J at an average of 349nm. What percentage of the naphthalene molecules emitted a photon?
How many liters of o2 will be produced at 37 c temperature : Problem- How many liters of O2 will be produced at a temperature of 37 C and 1520 torr if 2 moles of KClO3 decompose according to the following balanced equation: 2 KClO3 ------> 2 KCl + 3O2(g)
What is the value of n for the level : Problem- An electron in a hydrogen atom relaxes to the n=4, level, emitting light of 157 THz. what is the value of n for the level in which the electron originated?
What is the volume occupied by argon gas : Problem- What is the volume occupied by 23.4g of argon gas at a pressure of 1.48atm and a temperature of 414K
How many grams of kclo3 is needed to generate oxygen gas : Problem- Using the reaction that generates O2 shown below, how many grams of KClO3 is needed to generate 200.0 L of oxygen gas at 646 torr and 273 K? HINT: The molar mass of KClO3 = 122.55 g/mol. 2 KClO3(s) 2 KCl(s) + 3 O2(g)

Reviews

Write a Review

Chemistry Questions & Answers

  Explain naoh and must determine their concentrations

solutions of HCl and NaOH and must determine their concentrations. You use 33.6 mL of NaOH to titrate 100. mL of HCl and 24.0 mL of NaOH to titrate 50.0 mL of 0.0838 M H2SO4. Find the unknown concentrations.

  How many moles of gas were added

A gas sample containing 1.65 mol at 25°C exerts a pressure of 413 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.

  Classify the solid state of the subsequent substances

Classify the solid state of the subsequent substances as ionic crystals, covalent crystals, molecular crystals or metallic crystals. (a) CO2, (b) B12, (c) S8, (d) KBr, (e) Mg, (f) SiO2, (g) LiCl, (h) Cr

  Explain how a phospholipid differs from other fatty acids

Describe how a phospholipid differs from other fatty acids. How does this difference allow the formation of a bilayer in an aqueous medium

  How many grams of glucose are the final solution

The flask was then shaken until the solution was uniform. A 20.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?

  Explain standard enthalpy and free energy

The reaction X(s) ? X(g) is known at 25oC to have standard enthalpy, free energy, and entropy changes of 146.8 kJ, kJ, and 175.4 J/K. At what temperature (oC) does X(s) sublime?

  Depict a heating curve starting with ice

Draw a heating curve (qualitative) starting with ice at -20 degrees C going to steam at 200 degrees C. Indicate the solid, liquid, and gas states, and the melting and boiling points.

  Explain the maximum amount of energy that an organism

Due to oxygen consumption by the above reaction, the dissolved oxygen concentration in the water is only 2 mg/L. What is the maximum amount of energy that an organism could obtain by oxidizing 1 µmol of the organic matter

  For a particle in two-dimensional 1 box tabulate the energy

For a particle in two-dimensional 1 box L1 = L2 = L tabulate the energy values in the lowest 4 energy levels (as multiples of E where E = H2 /8mL2) as well as degeneracy of each level.

  Compute the molar mass of the noble gas krypton

Compute the molar mass of the noble gas krypton(Kr) in a natural sample, which is 2.2% 80 Kr (molar mass 79.91 g/mol),

  Explain what concentration of sulfuric acid remains

Write the balanced neutralization reaction between H2SO4 and KOH in aqueous solution. .150 L of .430 M H2SO4 is mixed with 0.100 L of .230 M KOH. What concentration of sulfuric acid remains after neutralization

  Temperature and the solution remaining in the eudiometer

A student collected hydrogen in a eudiometer as described above. Barometric pressure is 765.5 Torr, the vapor pressure of water is 22.0 Torr at this temperature and the solution remaining in the eudiometer is 5.75 cm above the water in the beaker

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd