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
Scrat [10]
3 years ago
7

the red line observed in the line spectrum for hydrogen has 3.03x10^-19J, what is the wavelength, in nm, of this?

Chemistry
1 answer:
djverab [1.8K]3 years ago
6 0

Answer:

λ = 6.5604 x 1016 nm

Explanation:

Given Data:

The energy of the red line in Hydrogen Spectra = 3.03 x 10-19

Formula to calculate Wave length

E= hv

Where E is Energy

h is Planks Constant = 6.626 x 10–34 J s

v is frequency

In turn

v= c/ λ

where c is speed of light = 3.00 x 108 m s–1

λ is wavelength = to find

Solution:

Formula to be Used:

E= hv………………………… (1)

Putting the value v in equation 1

               E= h c/ λ…………………… (2)

Put the value in equation 2

3.03 x 10-19 J  = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) / λ ……………………….(3)

By rearranging equation 3

λ = (6.626 x 10–34 J s) x (3.00 x 108 m s–1) /3.03 x 10-19  J

λ = 6.5604 x 107 m

The answer is in “m”

So we have to convert it into nm

So for this to convert “m” to “nm” multiply the answer with 109

λ = 6.5604 x 107 x 109

λ = 6.5604 x 1016 nm

You might be interested in
Which answer is INCORRECT not the correct one ​
Elena L [17]

Explanation:

It's 4

Hope it's help....

<h3>^_^</h3>
6 0
3 years ago
Read 2 more answers
Determine the empirical formula for a compound that is found to contain
Sphinxa [80]

Answer:

The empirical formula is PCl3

Explanation:

Mass of P is 30.97 g, thus 1.523 g of P equivalent to 0.05 moles of P

Mass of Cl is 35.45 g, thus 5.228 g of Cl equivalent to 0.15 moles of Cl

Therefore moles of P : moles of Cl = 0.05:0.15 = 1:3

Therefore the empirical formula, PCl3

7 0
3 years ago
Write chemical equations for the following electrolytes dissolving in water
Elden [556K]
1)NaCl=>Na^{+}+Cl^{-}\\2)PbSO_{4}=>Pb^{2+}+SO_(4)^{2-}
6 0
2 years ago
Which phrase related to electromagnetism applies only to electric force? A. Attraction and repulsion B. North and south C. Push
iogann1982 [59]

Answer:

positive and negative

Explanation:

ik its prob not helpful now but ye sorry no ones answered lol

3 0
2 years ago
One method of favoring the formation of an ester is to add excess acetic acid.
AleksandrR [38]

Answer: True

Explanation:

An ester refers to the class of organic compounds which react with water in order to produce organic acids, inorganic acids or alcohol. They are usually gotten from carboxylic acids.

A method of favoring the formation of an ester is to add excess acetic acid. Therefore, the above statement is true.

4 0
2 years ago
Other questions:
  • Which agents cause both chemical and physical weathering?
    7·1 answer
  • in a second experiment, the total pressure is observed to be 58 atm. what is the partial pressure of the water vapor produced?
    8·1 answer
  • Rocks that originated from the liquid phase are classified as
    7·2 answers
  • Which car traveled a greater distance? Car A traveled 25 miles/hour for 3 hours, stopped for an hour, and then traveled 35 miles
    12·1 answer
  • I think it’s D but I’m not sure.. Please help!
    6·2 answers
  • In which type of mirror do you see the most realistic virtual image
    6·1 answer
  • Good day pleases help
    9·2 answers
  • In the reactions,A products with the concentration [A]0=1.512M,[A]is found to be 1.496at t=30S.With the initial concentration [A
    6·1 answer
  • WORTH 20 POINTS Confirmation bias is where a scientist may change the data to support a certain bias.
    5·1 answer
  • What substances are produced when an acid reacts with a base?.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!