1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrey2020 [161]
2 years ago
15

A photon of light possesses 5 x 10^-19 J of energy. Calculate its frequency

Chemistry
1 answer:
saveliy_v [14]2 years ago
4 0

Answer:

The frequency of photon is 0.75×10¹⁵ s⁻¹.

Explanation:

Given data:

Energy of photon = 5×10⁻¹⁹ J

Frequency of photon = ?

Solution:

Formula;

E = hf

h = planck's constant = 6.63×10⁻³⁴ Js

5×10⁻¹⁹ J =  6.63×10⁻³⁴ Js ×f

f =  5×10⁻¹⁹ J / 6.63×10⁻³⁴ Js

f = 0.75×10¹⁵ s⁻¹

The frequency of photon is 0.75×10¹⁵ s⁻¹.

You might be interested in
PLS PLS PLS PLS PLS HELP MEEEEEEEE PLS PLS PLS PLS PLS
svetoff [14.1K]
The answer is C: How long does it take distilled water to evaporate from a 5” diameter container?
5 0
2 years ago
Read 2 more answers
How many moles of sulfur dioxide are in 2.26x10^33 sulfur dioxide molecules?
Alexus [3.1K]

Answer:moles = no. of molecules / Avogadro's number

          = 2.26 x 10^33 / 6.022 x 10^23

          = 3752906011

Round to significant figures which is 3 = 3.75 x 10^9 mol

Explanation:

The formula for finding how many moles of a substance when given the amount of molecules is: moles = number of molecules / Avogadro's number

3 0
3 years ago
Read 2 more answers
A structure that can lessen erosion is
vazorg [7]
I’m just commenting rn to get points
7 0
2 years ago
Read 2 more answers
Which of the following numbers count as exact numbers and do not count when determining significant figures in a calculation? 1.
rewona [7]

Answer :

(1) Density do not count as exact number.

(2) Volume count as exact number.

(3) Length count as exact number.

(4) Speed do not count as exact number.

(5) Number count as exact number.

(6) Mass do not count as exact number.

Explanation :

Exact numbers : It is a defined or integer value which comes from counting numbers of objects.

They have an infinite number of significant figures.

For example : 12 eggs in a dozen, 1000 g in a kilogram and 2.54 cm in an inch.

Now we have to determine the following numbers count as exact numbers.

(1) Density : 3.7 g/mL

Density do not count as exact number.

(2) Volume : 1000 mL/L

Volume count as exact number.

(3) Length : 2.54 cm/in

Length count as exact number.

(4) Speed : 65.2 km/hr

Speed do not count as exact number.

(5) Number : 14 aardvarks

Number count as exact number.

(6) Mass : 38.741 g

Mass do not count as exact number.

4 0
3 years ago
Mass = 35g Volume = 7cm³ What is the Density?​
gizmo_the_mogwai [7]

Answer:

The answer is

<h2>5.0 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 35 g

volume = 7 cm³

The density is

density =  \frac{35}{7}  \\

We have the final answer as

<h3>5.0 g/cm³</h3>

Hope this helps you

7 0
3 years ago
Other questions:
  • How many of the following are oxidation-reduction reactions? I. reaction of a metal with a nonmetal II. synthesis III. combustio
    10·1 answer
  • What measure remains consistent no matter its location
    13·2 answers
  • Which of the following is not a layer of the atmosphere? (4 points)
    9·1 answer
  • 8. Write a balanced chemical equation showing how you could prepare each of the following salts from an
    9·1 answer
  • 12. Calculate the hydroxide ion concentration of a solution with pH = 10.25. Show all calculations leading to an answer.
    5·2 answers
  • A gaseous fossil fuel produced from organic matter that is used to heat homes and cook
    12·1 answer
  • In one sentence, describe the general chemical structure of carbohydrates. In a second sentence, list the major biochemical func
    10·1 answer
  • If a bowing ball hits a wall with a force of 6 N, the wall exerts a force of ____ back on the bowing ball
    6·1 answer
  • Name any two mix metals with one use from each.​
    10·1 answer
  • Why did mendeleev leave blank spaces in his version of the periodic table?.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!