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
Radda [10]
2 years ago
6

A student uses visible spectrophotometry to determine the concentration of CoCl2(aq) in a sample solution. First the student pre

pares a set of CoCl2(aq) solutions of known concentration. Then the student uses a spectrophotometer to determine the absorbance of each of the standard solutions at a wavelength of 510nm and constructs a standard curve. Finally, the student determines the absorbance of the sample of unknown concentration.
A wavelength of 510nm corresponds to an approximate frequency of 6×1014s−1. What is the approximate energy of one photon of this light?

9×1047J
3×1017J
5×10−7J
4×10−19J
Advanced Placement (AP)
1 answer:
Rina8888 [55]2 years ago
6 0

Answer:

E = 4 × 10⁻¹⁹ J

Explanation:

It is given that,

Wavelength = 510 nm

Frequency = 6\times 10^{14}\ Hz

We need to find the approximate energy of one photon of this light. The formula for the energy of a photon is given by :

E=hf\\\\=6.63\times 10^{-34}\times 6\times 10^{14}\\\\=3.97\times 10^{-19}\ J

or

E = 4 × 10⁻¹⁹ J

Hence, the correct option is (d).

You might be interested in
In the chart below, enter the results of each person’s 1040. Specifically, are they going to receive a refund or owe taxes? In
snow_lady [41]

Answer:

yez

Explanation:

8 0
2 years ago
Ella looked out her window and saw two birds. She immediately recognized one as a blue jay and the other as a robin. What is her
Oksi-84 [34.3K]

Answer:

Physical characteristics.

Explanation:

She knew what type of birds they were based on their physical characteristics.

She didn't see their nests, or see them eat, and she didn't test and analyze their genetics, so a is the correct option.

4 0
3 years ago
Is it worth it to take AP Psych? Like is it an easy course? I need something to fill my second-semester elective, and AP Psych w
bonufazy [111]

Answer:

Compared to other AP® exams, AP® Psychology is considered one of the easier exams to pass in the AP® catalog for the reasons described below. In 2021, the AP® Psychology exam had a passing rate of 53.3% with a mean score of 2.71

Explanation:

4 0
2 years ago
Ano anong ang mga suliraning kinakaharap ng ating bansa<br>​
steposvetlana [31]

Answer:

I dont understand the language

7 0
2 years ago
ASL has a different sentence structure than spoken English.<br> True<br> False
attashe74 [19]
The answer to this question is true
8 0
2 years ago
Read 2 more answers
Other questions:
  • The scoring range of a CLEP exam is from?
    7·2 answers
  • using a simple machine, a student is able to lift a 500n weight by applying only 100n. What is the mechanical advantage
    6·1 answer
  • What effect did the townshed act have on british colonist
    15·1 answer
  • YOU WANT FREE POINTS &amp; BRAINLIEST? ANSWER THIS DRIVERS ED QUESTION CORRECTLY AND I GOT YOU
    6·2 answers
  • Evaluate the Social Cognitive Theory
    13·1 answer
  • Can someone write me a 2 paragraph current event on the election?
    15·1 answer
  • Whats the point of giving someone a brainliest mark? im just curious​
    14·2 answers
  • We... having undertaken, for the glory of God, and advancement of the Christian faith, and honor of our King and Country, a voya
    12·1 answer
  • Which form of promotion would be most effective at correcting a damaged business reputation?
    9·2 answers
  • 5.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!