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
Stells [14]
3 years ago
14

What is the work function of gold metal in kJ/mol if light with λ = 234 nm is necessary to eject electrons?

Chemistry
1 answer:
Tju [1.3M]3 years ago
8 0

Answer

512kj/mole

Explanation:

What is the work function of gold metal in kJ/mol if light with λ = 234 nm is necessary to eject electrons?

The energy can be calculated using below expresion;

E = hc/λ

Where h= planks constant= 6.626 x 10^-34

c= speed of light= 3 x 10^

λ= wavelength

hc= (6.626 x 10^-34 x 3 x 10^ 8)

=

You might be interested in
You are given the reaction Cu + HNO3 → Cu(NO3)2 + NO + H2O. Half-reactions: First: 3 upper C u right arrow 3 upper C u superscri
nexus9112 [7]

Answer: It is the first one. First: 3 upper C u right arrow 3 Upper C u superscript 2 plus, plus 6 e superscript minus. Second: 2 upper N superscript 5 plus, plus 6 e superscript minus right arrow 2 upper N superscript 2 plus.

Explanation:

Correct

4 0
3 years ago
Read 2 more answers
Number of molecules of water in 6 moles
Anit [1.1K]
I mol of anything is 6.02 * 10^23 (in this case molecules of water)
6 mols of water = x

1/6 = 6.02 * 10^23 / x Cross multiply
x = 6 * 6.02* 10^23
x = 3.612 * 10^24 molecules in 6 mols of water

5 0
3 years ago
Carbon-14 undergoes radioactive decay in the reaction above. Determine the type of radiation emitted in this reaction and descri
Drupady [299]

<u>Answer:</u> The beta-particle is being released in the reaction and the nucleus is changing from to nitrogen.

<u>Explanation:</u>

Carbon-14 undergoes a radioactive decay by the process of beta-minus decay.

In beta-minus decay, a neutron gets converted to a proton and an electron.

The equation for the beta-minus decay of carbon-14 follows the reaction:

_6^{14}\textrm{C}\rightarrow _7^{14}\textrm{N}+_{-1}^0\beta

In this reaction beta-particle is being released carrying -1 charge. Another name for this particle is known as electron.

In this decay process, the nucleus is changing from carbon to nitrogen. The property of the nucleus is changing completely as number of protons is getting increased.

4 0
4 years ago
Read 2 more answers
Nh4i(aq)+koh(aq)→ express your answer as a chemical equation. identify all of the phases in your answer.
tester [92]
NH4I (aq)  +  KOH  (aq)  in   chemical   equation  gives

   NH4I (aq)  +  KOH (aq)   =  KI  (aq)  +  H2O(l)  +  NH3  (l)

Ki  is  in  aqueous  state  H2o   is  in   liquid  state  while  NH3  is  in  liquid  state

from  the  equation  above  1 mole of  NH4I (aq) react  with  1 mole of KOH(aq) to  form  1mole of KI(aq) ,  1mole of H2O(l)  and 1  Mole  of NH3(l)
5 0
3 years ago
Read 2 more answers
Compare the charges and masses of<br> protons, neutrons, and electrons.
lapo4ka [179]

Answer:

Protons, neutrons, and electrons: Both protons and neutrons have a mass of 1 amu and are found in the nucleus. However, protons have a charge of +1, and neutrons are uncharged. Electrons have a mass of approximately 0 amu, orbit the nucleus, and have a charge of -1.

Explanation:

4 0
3 years ago
Other questions:
  • Which property of an atom's structure was used to organize the periodic table?
    7·1 answer
  • Reaction coordinates represent: A. The balanced equation for a chemical reaction. B. The change in pH for a chemical reaction. C
    13·1 answer
  • Determine the number of molecules present in 5.60 mol of nitrogen dioxide, the number of atoms of oxygen, and the number of nitr
    6·1 answer
  • How do valence electrons interact between non polar covalent, polar covalent, and ionic bonds?​
    9·1 answer
  • Which of the following involves a chemical change?
    11·2 answers
  • Solve the following 2 questions below, involving elements and reactions. *
    8·2 answers
  • Si 72g de magnesio se combinan exactamente con 48g de oxígeno para formar óxido de magnesio ¿cuantos gramos de óxido de habrán f
    6·1 answer
  • Help me with this one please!
    13·1 answer
  • What is the difference b/w synthesis reaction and combination reaction​
    14·2 answers
  • _C2H5OH + _O2–&gt;_CO2 + _H2O<br><br> How do u balance in the equation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!