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
g100num [7]
3 years ago
8

What is the wavelength of an X-ray that has a frequency of 7.8 x 1017 Hz

Chemistry
1 answer:
SVEN [57.7K]3 years ago
3 0

Answer:

λ = 0.38 ×10⁻⁹ m

Explanation:

Given data:

Wavelength of xray = ?

Frequency of xray = 7.8 ×10¹⁷ Hz

Solution:

Formula:

Speed of light = wavelength × frequency

speed of light = 3×10⁸ m/s

Now we will put the values in formula.

3×10⁸ m/s = λ × 7.8 ×10¹⁷ Hz

λ = 3×10⁸ m/s / 7.8 ×10¹⁷ Hz

         Hz = s⁻¹

λ = 3×10⁸ m/s / 7.8 ×10¹⁷s⁻¹

λ = 0.38 ×10⁻⁹ m

You might be interested in
In Philip’s French class, the students are learning how to pronounce closed vowels and open vowels. The students are most likely
Sladkaya [172]

Answer:

It sounds like they are studying French phonemes

Explanations:

I just learned this.

7 0
3 years ago
Read 2 more answers
Elements are simple ___
storchak [24]

Answer:

particles

atoms

broken

isotope

conductors

electricity

element

combined

3 0
2 years ago
Annoying user "Living under a bridge"<br><br><br> its for a crossword ​
natulia [17]
I think the word might be a “troll”
3 0
3 years ago
31. calculate the amount of energy released as heat by the freezing of 13.3 g of a liquid substance, given that the substance ha
spin [16.1K]

From the calculations, the heat of fusion of the substance is 0.73 kJ

<h3>What is is the heat of freezing?</h3>

The heat of freezing is the energy released when the substance is converted from liquid to solid.

Now we know that the molar mass of the substance is 82.9 g/mol  hence the number of moles of the substance is;  13.3 g /82.9 g/mol  = 0.16 moles

Now the heat of fusion shall be;

H = 4.60 kj/mol * 0.16 moles

H = 0.73 kJ

Learn more about freezing:brainly.com/question/3121416

#SPJ4

5 0
1 year ago
What is the mass of 5.2 moles of ca(no3)2​
zhannawk [14.2K]
Mass to moles
5.2 mol/Ca(no3)2 to mol
5.2 mol/Ca(no3)2 / molar mass
5.2 mol/Ca(no3)2 / 164.1= 0.032 g/Ca(no3)2
5 0
3 years ago
Other questions:
  • opisz jak rozdzielisz następujące mieszaniny na składniki z których powstały (nie zapomnijcie użyć nazw metod ): - mąka z groche
    5·1 answer
  • How many grams of Cu(OH)2 will precipitate when excess NaOH solution is added to 46.0 mL of 0.584 M CuSO4
    6·1 answer
  • A solution is prepared by dissolving 15.0 g of nh3 in 250.0 g of water. the density of the resulting 7)solution is 0.974 g/ml. t
    7·2 answers
  • A 10.0 kg crate is pushed with a horizontal force of 40 N. The crate moves at a constant velocity of 3.0 m/s. What is the value
    14·1 answer
  • Propose a 3-step reaction for the conversion of cyclopentene to propanedioic acid
    7·1 answer
  • A student is given a stock solution of 1.00 M NaCl in water. They are asked to make 5 mL of 0.0500 M NaCl. How much of the stock
    13·1 answer
  • Which are bundles of cells in the lungs that take in oxygen?
    10·1 answer
  • How many moles of iron is 3.011 x 10^27 atoms of iron? Please show work if possible
    11·1 answer
  • You are given a colourless solution, it turned blue litmus paper red​
    5·1 answer
  • GOOD MORNING GUYS☕☕☕☕​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!