Question

Asked Oct 16, 2019

3 views

Be sure to answer all parts. Calculate the difference in energy (in joules) between a photon withλ =697 nm and a photon withλ = 347 nm. Enter your answer in scientific notation. |

Step 1

Given

Wavelength of 1^{st} photon = 697nm

Wavelength of 2^{nd} photon = 347 nm

Step 2

To calculate energy we can use the formula E=hν

We can calculate the value of frequency or ν by the formula c=λν.

Step 3

Now using these values...

Tagged in

Q: I mix 9.99 grams of nitrogen, 9.18 grams of hydrogen and 9.05 grams of helium in a flask. If the tot...

A: From the given masses of nitrogen, hydrogen and helium, the moles can be calculated.

Q: 1. When 2.00 grams of solid sodium hydroxide dissolves in 100.0 ml of water in a coffee-cup calorime...

A: Click to see the answer

Q: A chemist prepares a solution of calcium sulfate (CaSO)4 by measuring out 0.258μmol of calcium sulfa...

A: Solution stoichiometry involves the calculation of concentration of solutions in the given condition...

Q: Calculate the de Broglie wavelength (in nm) of a hydrogen atom (m = 1.674×10−27 kg) moving at 1530 c...

A: Mass of hydrogen is given as 1.674×10-27 kg.The velocity of the hydrogen atom is 1530 cm/s. de-Brogl...

Q: 27) The cycle of copper reactions illustrates important principles of chemical reactions. The cycle ...

A: The balanced equation is given below.

Q: To what volume should you dilute 46 mL of a 12 M stock HNO3 solution to obtain a 0.122 HNO3 solution...

A: It is required to calculate the volume of 0.122 M HNO3 from a 12 M stock HNO3 solution having a volu...

Q: The recommended daily allowance (RDA) of calcium is 1200 mg. Calcium carbonate contains 12% calcium....

A: According to the question, 12% of calcium is present in calcium carbonate that means each 100 grams ...

Q: Calculate the molarity of a solution containing 37.8g KBrO3 in 750mL of solution.

A: The number of moles of KBrO3 is calculated as,

Q: What is the frequency of light emitted when the electron in a hydrogen atom undergoes a transition f...

A: The difference in energy between the energy levels can be calculated as