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
babymother [125]
3 years ago
8

Convert 4.02 X 1023 atoms Fe to moles

Chemistry
1 answer:
Vaselesa [24]3 years ago
6 0
0.668 moles!



1 mole of Fe weighs 55.845 g.
1 mole has 6.02*10^23 atoms.

(4.02*10^23)/(6.02/10^23) = 4.02/6.02=2.01/3.01=0.668 moles
You might be interested in
Which of the following is the main disadvantage to using fossil fuels?
steposvetlana [31]
The answer is A)pollution
7 0
3 years ago
Read 2 more answers
One isotope of oxygen differs from another isotope of oxygen in *
Reptile [31]

Each isotope of Oxygen has a different number of neutrons

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Atomic mass is the average atomic mass of all its isotopes

Isotopes are atoms has the same number of protons but has a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

Some of the isotopes of oxygen are:

\tt _8^{16}O,_8^{17}O,_8^{18}O

Each isotope has 8 protons and 8 electrons but has a different number of neutrons

For O-16: number of neutrons = 16-8 = 8

For O-17: number of neutrons = 17-8 = 9

For O-18: number of neutrons = 18-8 = 10

4 0
3 years ago
Atomic weight of lithium ?
LuckyWell [14K]

Answer:

6.941

Explanation:

5 0
3 years ago
Which statement correctly describes the relationship between air temperature and air pressure?
grigory [225]

Answer:

-Warm air sinks, creating an area of low pressure.

Explanation:

Heat will weigh more, than cool air!

7 0
3 years ago
How many moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas?
tino4ka555 [31]

Taking into account the reaction stoichiometry, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

CO₂ + 4 H₄  → CH₄ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • CO₂: 1 mole
  • H₄: 4 moles  
  • CH₄: 1 mole
  • H₂O: 2 moles

<h3>Moles of CH₄ formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 1 mole of CO₂ form 4 moles of CH₄, 85.1 moles of CO₂ form how many moles of CH₄?

moles of CH_{4} =\frac{85.1 moles of CO_{2}x4 moles of CH_{4} }{1 moles of CO_{2}}

<u><em>moles of CH₄= 340.4 moles</em></u>

Then, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

6 0
2 years ago
Other questions:
  • How can you build an electromagnet?
    12·1 answer
  • How does photosynthesis affect our carbon footprint?
    6·2 answers
  • What happens in a Lewis acid-based reaction
    14·2 answers
  • NA + 1.82 x nA = 2.0 x 10^-2. How do you solve for nA?
    6·1 answer
  • A sample of uranium ore contains 6.73 mg of 238U and 3.22 mg of 206Pb. Assuming all of the lead arose from the decay of the uran
    13·1 answer
  • Beaches along the eastern and western coasts of North America are composed chiefly of quartz grains.
    14·1 answer
  • What gas does photosynthesis produce
    5·2 answers
  • Highly reactive organic molecules
    14·1 answer
  • Explain briefly how wind are causd​
    5·1 answer
  • While playing soccer, Carla slides across one of the lines on the field. When she stands up, what base does she dust off? calciu
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!