A 9.00 mL ampule of a 0.150 M solution of naphthalene in hexane is excited with a flash of light. The naphthalene emits 11.8 J of energy at an average wavelength of 349 nm. What percentage of the naphthalene molecules emitted a photon?

Q: a liquid is exposed to infrared radiation with a wavelength of 6x10^-4 cm. assume that all radiation…

A: Given that, the wavelength is ,Energy is E = 17.22 J.We have to calculate the number of photons…

Q: A 359 g portion of soup is heated in a microwave oven from 25.0 °C to 90.0 °C, using radiation with…

A: Given, the mass of the soup, Msoup = 359 g Initial temperature of the Microwave Oven, ti = 25.…

Q: An ampule of napthalene in hexane contains 5.00x10^-4 mol napthalene. The napthalene is excited with…

A: Given: 5.00 × 10-4 mol naphthalene in an ampule wavelength = 349 nm Energy emitted = 15.5 J…

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A: The energy required is given by, E=m.C.∆T where m is the mass, C is the specific heat and ∆T is the…

Q: A laser produces 20.0 mW of red light. In 1.00 hr, the laser emits 2.29 x 1020 photons. What is the…

A: Given that: power = mW time = 1.00 hr number of photon = 2.29×1020 To find: wavelength of laser?

Q: A nitrogen laser generates a pulse containing 10.1 mJ of energy at a wavelength of 339.6 nm. How…

A:

Q: What is the minimum number of microwave photons with a wavelength of 3.36 mm that will have to be…

A: Calculation of heat required to heat the water:

Q: A 8.00 mL ampule of a 0.150 M solution of naphthalene in hexane is excited with a flash of light.…

A: we have to calculate the percentage of naphthalene molecules that emit photon

Q: The absorption peaks of chlorophyll a are at 665 nm and 465 nm. Assume that a plant can convert all…

A: Energy of a radiation is affected by its frequency or its wavelength. The radiant energy (E)…

Q: Ozone in the stratosphere absorbs ultraviolet light of wavelengths shorter than 320 nm, thus…

A: Wavelength is defined as the distance between two crests and two troughs. It is represented by…

Q: How many photons at 660 nm must be absorbed to melt 5.0 x10^2 g of ice? On average, how many H2O…

A: Heat is absorbed to melt ice to water.

Q: What is the energy (in Joules) of a photon with a wavelength of 277 nm?

A:

Q: An ampule of naphthalene in hexane contains 1.00×10-4 naphthalene. The naphthalene is excited with a…

A:

Q: A 5.00-mL ampule of a 0.100-M solution of naphthalene in hexane is excited with a flash of light.…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,…

Q: A certain microwave oven delivers 1250 watts of power to a coffee cup containing 125.0 gm of water…

A: Given: Power of microwave oven= 1250watts Mass of water= 125.0 g The wavelength of the microwave =…

Q: Excited hydrogen atoms emit light in the ultraviolet at 2.47 ´ 1015 Hz. What is the energy of a…

A: The energy of photon is given by  E = hf where E = energy of photon  h = Plank's constant = 6.626 X…

Q: An argon ion laser puts out 4.8 W of continuous power at a of 532 nm. The diameter of the laser beam…

A: we have to calculate the number of photons that travel through the pinhole per second

Q: A liquid is exposed to infrared radiation with a wavelength of 5.52 × 10-4 cm. Assume that all the…

A: Given that Heat energy = 46.75 J  wavelength = 5.52 × 10–4 cm = 5.52 × 10–6 m Number of photons =…

Q: A 493 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A:

Q: 4) How many photons are contained in a burst of light (536.2 nm) from a lamp that contains 606.3 kJ…

A: The energy of electromagnetic radiation is quantized. The smallest unit of energy in the radiation…

Q: An argon ion laser puts out 6.0 W of continuous power at a wavelength of 532 nm. The diameter of the…

A: Energy of the photons with wavelength = 532 nm is given as:

Q: 9.) The absorption peaks of chlorophyll a are at 665 nm and 465 nm. Assume that a plant can convert…

A: Given: The wavelength of each photon is 665 nm and 465 nm.

Q: A 6.00 mL ampule of a 0.110 M solution of naphthalene in hexane is excited with a flash of light.…

A: Molarity is defined as moles per liter. So, number of moles and hence the number of molecules in…

Q: A 491 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A: Given, A 491 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation…

Q: The energy of light photons varies with wavelength. Calculate the energy per mole of photons for…

A:

Q: What is the energy of a photon corresponding to microwave radiation of frequency 1.144 1010 /s? J

A: The relationship between the energy and frequency of photon is given by  E = hf where E = energy  h…

Q: Consider this value: -1.6335 * 10-18 J. Based on that value, is there any 1-electron atom or ion…

A: Given: Energy = -1.6335×10-18 J Initial energy state n = 2 Final energy state n =1

Q: A 437 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A: Given,  Mass of the Soup = 437g grams Initial Temperature of the Microwave Oven, Ti = 25. 0°C Final…

Q: A ground-state H atom absorbs a photon of wavelength 91.50 nm. What higher energy level did the…

A:

Q: What is the energy of a photon corresponding to microwave radiation of frequency 1.407 1010 /s?

A: The relationship between the energy of photon and frequency of photon is given by  E = hf where E =…

Q: Calculate the number of photons if a light source emists a total energy of 0.01 W with a wavelength…

A: The conversion factor for nanometers to meters is, 1 m = 109 nm or 1 nm = 10-9 m The wavelength is…

Q: ectrons:

A:

Q: An argon ion laser puts out 5.0 W of continuous power at a wavelength of 532 nm. The diameter of the…

A:

Q: A 17 Watt laser emits light with a wavelength of 525 nm.  How many photons are emitted in 6.0…

A: The energy of a photon is calculated using the below equation.

Q: Exposure to high doses of microwaves can cause tissue damage. Estimate how many photons, with A = 13…

A: Energy of one photon = hcλ  Where h = plank's constant = 6.626 x 10-34 J s c= velocity of light = 3…

Q: Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of…

A:

Q: A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 100.0 g water…

A:

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.