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
AfilCa [17]
4 years ago
6

Ionization involves completely removing an electron from an atom. light of a particular wavelength can cause ionization to occur

if it has the required energy. the energy to ionize a certain element is 342 kj/mol. what wavelength contains enough energy in a single photon to ionize one atom of this element?
Chemistry
1 answer:
Alex17521 [72]4 years ago
4 0
<span>350 nanometers We first need to calculate how much energy is needed to ionize a single atom. So divide the kilojoules/mol energy value by avogadro's number. 342 kj/mol / 6.0221409x10^23 = 5.67904x10^-19 Joules So we need a photon with 5.67904x10^-19 Joules of energy. The equation to express the energy of a photon is E = hc/w where h = Planck constant (6.626070040Ă—10â’34 Js) c = speed of light (299792458 m/s) w = wavelength of photon Solving for w E = hc/w Ew = hc w = hc/E Substituting known values w = 6.626070040Ă—10^â’34 Js * 299792458 m/s / 5.67904x10^-19 J w = 1.9864458x10^-25 Jm / 5.67904x10^-19 J w = 3.497855x10^-7 m w = 3.50x10^-7 m w = 350 nm</span>
You might be interested in
Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 7.82 g of ethane is
NeTakaya

Answer:

4.79 g of water

Explanation:

From the reaction equation;

C2H6(g) + 7/2O2(g) ----> 2CO2(g) + 3H2O(g)

Next we convert the given masses of reactants to moles of reactants.

For ethane; number of moles = mass/molar mass= 7.82g/ 30gmol-1= 0.261 moles

For oxygen; number of moles= 9.9 g/32gmol-1= 0.31 moles

Next we determine the limiting reactant, the limiting reactant yields the least amount of product.

For ethane;

From the reaction equation,

1 mole of ethane yields 3 moles of water

0.261 moles of Ethan yields 0.261 ×3 = 0.783 moles of water

For oxygen;

3.5 moles of oxygen yields 3 moles of water

0.31 moles of oxygen yields 0.31 × 3/3.5 = 0.266 moles of water

Hence oxygen is the limiting reactant.

Mass of water produced = 0.266 moles of water × 18gmol-1 = 4.79 g of water

4 0
3 years ago
Amyx is building a treehouse in his backyard. He notices that every time he strikes a nail with the hammer, the hammer bounces b
tangare [24]

Answer:

I think the answer is -  "is stuck and won't go any further into the wood."

7 0
3 years ago
Read 2 more answers
Which wave has a disturbance that is perpendicular to the wave motion?
Otrada [13]
It B I just took the test ;)
7 0
4 years ago
Read 2 more answers
What kind of reaction is 2C2H6 + 7O2 = 4CO2 + 6H2O
ahrayia [7]

Answer:

A combustion reaction

Explanation:

C

organic compound(contains carbon) reacts with oxygen to give out carbon dioxide and water is a complete combustion.

6 0
3 years ago
How much more mass does carbón -14 have compared to carbón -12
lorasvet [3.4K]
A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons). Neutral carbon-14 contains six protons, eight neutrons, and six electrons; its mass number is 14
3 0
3 years ago
Other questions:
  • Write a story that includes:
    14·1 answer
  • As an environmental engineer how would you apply the process of separating mixtures to clean up a polluted beach? What would you
    13·1 answer
  • A scientific law is _____.
    12·2 answers
  • Consider the following balanced equation for the following reaction:
    8·1 answer
  • Please please help me!! It needs to be turned in in a few minutes!
    7·2 answers
  • Which piece of glassware shown below is used to hold and dispense a solution of known concentration during a titration?
    7·1 answer
  • +30 points
    14·1 answer
  • 4 How can three liquids form something that resembles a solid? (Slime)
    14·1 answer
  • 5 The atoms of a certain element each contain 36 protons and 8 valence electrons. Which
    11·1 answer
  • How is our sense of vision like our sense of smell? ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!