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
Katarina [22]
3 years ago
14

A particular form of electromagnetic radiation has a frequency of 8.11 x 10^14 hz. What is the energy in joules of one quantum o

f this radiation?
Chemistry
2 answers:
quester [9]3 years ago
5 0
<span>E = hxf, où h = constante de Planck = 6,626 x 10 ^ -34Js 

E = 6,626 x 10 ^ -34 x 8.11 x 10 ^ 14 = 5.373 10^ -19 J </span><span> 

Hope this answers your question, Kimmyers14!</span>
ioda3 years ago
3 0

Answer:

Energy, E=5.37\times 10^{-19}\ J

Explanation:

The frequency of the electromagnetic radiation, f=8.11\times 10^{14}\ hz

We need to find the energy of one quantum of this radiation. The energy and frequency follows the following relationship as :

E=h\times f

E=6.63\times 10^{-34}\times 8.11\times 10^{14}

E=5.37\times 10^{-19}\ J

So, the energy of one quantum of this radiation 5.37\times 10^{-19}\ J. Hence, this is the required solution.

You might be interested in
Which compound could serve as a reactant in a neutralization reaction ?
Veseljchak [2.6K]
 The   compound that  could serve  as  a reactant   in the neutralization reaction is    H2SO4
     
  Explanation
   Neutralization reaction occur  between an acids  and a base. H2SO4             (  sulfuric acid)  is  a strong  acid.  It can be neutralized by  strong base such as NaOH ( sodium  hydroxide)

  Example of neutralization reaction is

2NaOH + H2SO4 → Na2SO4  + 2H2O
7 0
3 years ago
How does melanin provide protection against skin cancer? use absorb
FrozenT [24]
For instance a white girl walks in the sunlight her skin is really white this is one common reason white people tend to get freckles now if a black person were to go outside they wouldnt receive freckles from direct sunlight
8 0
3 years ago
Read 2 more answers
Let's assume you were given 2.0 g benzil, 2.2 g dibenzyl ketone, 50 mL 95% ethanol and 0.3 g potassium hydroxide to synthesize t
almond37 [142]

Answer:

the % yield is 82%

Explanation:

Given the data in the question,

we know that;

Molar mass of benzil is 210.23 g·mol−1

Molar mass of dibenzyl ketone is 210.27 g·mol−1

Molar mass of tetraphenylcyclopentadienone is 384.5 g·mol−1

Now,

2.0 g benzil = 2 g / 210.23 g·mol−1 = 0.0095 mole

2.2 g dibenzyl ketone = 2.2 / 210.27 = 0.0105 mole

3.0 g of tetraphenylcyclopentadienone = 3 / 384.5  = 0.0078 mole

Now, the limiting reagent is benzil. 0.0095 mole can reacts wiyh 0.0095 mole of dibenzyl ketone

percentage yield = ( 0.0078 mole / 0.0095 mole ) × 100%

= 0.82 × 100%

= 82%

Therefore, the % yield is 82%

3 0
3 years ago
Why are units of measurement useful?
natali 33 [55]

Answer:

B

Explanation:

If you are comparing an amount you are trying to find the quantity or the total of something or the size  therefore answer B is the right answer  

4 0
3 years ago
Explain how a substances flammability can indicate a chemical change.
Marat540 [252]

Answer:

This is simple, if it has a high flammability, and you light it on fire, then that would be a chemical change.

Explanation:

May I have brainliest please? :)

4 0
3 years ago
Other questions:
  • Amount of moles in 3.34x10^34 formula units of Cu(OH)2
    6·1 answer
  • Which of the following assumptions appears reasonable for the isothermal process? H20 (liq, 1 bar) → H2O (liq, 1300 bar), T = 20
    11·1 answer
  • Predict the gravitational and electrostatic forces between molecules of gases? Provide evidence for your prediction.
    6·1 answer
  • 2. How many moles of hydrogen atoms are there in 154 mL of 0.18 M H2SO4? Write your
    12·1 answer
  • Giving brainliest to whoever answers, correctly.
    11·1 answer
  • The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes
    6·2 answers
  • Which equation is derived from the combined gas law?
    11·2 answers
  • Help me guys plz with both of them
    8·2 answers
  • Hello it's my new id myself numu ​
    10·2 answers
  • 3. Given 20g of Barium Hydroxide, how many grams of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!