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
Bezzdna [24]
3 years ago
11

You heat 3.869 g of a mixture of fe3o4 and feo to form 4.141 g fe2o3. What is the mass of oxygen reacted?

Chemistry
1 answer:
Lostsunrise [7]3 years ago
5 0

The reaction is  

FeO + Fe3O4 + 1/2 O2---> 2Fe2O3

Thus as shown in the balanced equation two moles of Fe2O3 are formed when 0.5 moles of O2 reacted with mixture of FeO and Fe3O4

moles of Fe2O3 = MAss / Molar mass = 4.141 / 159.69 = 0.0259 moles

So moles of O2 needed = 0.5 X 0.0259 = 0.01295

Mass of O2 = moles X molar mass = 0.01295 X 32 = 0.4144 grams

You might be interested in
Will something that is water soluble dissolve in oil
lawyer [7]
Something like that wouldn't dissolve in oil
4 0
3 years ago
How are selective breeding, cloning, and genetic engineering similar? They are all controlled by nature. They are all controlled
sveticcg [70]

Answer:They are all controlled by the human beings.

Explanation:

The selective breeding, cloning and genetic engineering are some of the techniques which is induced by the human efforts.

In case of selective breeding the male and female species having the selective characters are mated with each other so that the offspring produced  has the desired characters. It neither requires any enzyme nor uses udder cells.

In case of genetic engineering, the gene of interest is inserted in the bacterial species by the help of vector so that when the bacterial species amplify the gene of interest. This is how the desired products are produced by bacterial species. Example: Insulin production.

Cloning can be defined as another technique made by human beings in which the genetically identical species is made naturally or artificially for the benefit of the mankind.

7 0
3 years ago
Read 2 more answers
Write the atomic number, atomic mass, number of protons, number of neutrons, and number of electrons for each element.
Nastasia [14]

Answer:

subject?

Explanation:

5 0
3 years ago
How many ml of a 2.903 M NaOH solution are needed to produce 500.0 ml of a 0.3344M solution?
levacccp [35]

Answer:

57.6ml

Explanation:

Using dilution formula

C1V1 = C2V2

C1 = 2.903 M, V1 = ? , C2 = 0.3344 M , V2 = 500ml

2.903 × V1 = 0.3344 × 500

V1 =( 0.3344 × 500)/ 2.903

= 57.5956

≈ 57.6ml

3 0
2 years ago
576 centimeters to feet
vovikov84 [41]

Answer:

about 19 feet (18.89)

3 0
3 years ago
Read 2 more answers
Other questions:
  • F a shell can hold a maximum of 32 electrons, what is the value of n? 2 3 4 5
    5·2 answers
  • From what philosophical tradition is chemistry said to have emerged?
    14·1 answer
  • PLS HELP!!
    14·1 answer
  • The volume of a sphere is given by the equation =4/33, where is the radius. Calculate the volume of a sphere with a radius of 34
    15·1 answer
  • Assuming constant pressure, rank these reactions from most energy released by the system to most energy absorbed by the system,
    9·1 answer
  • A solution of hydrofluoric acid, HF(aq), is at equilibrium. How would the system change if more HF were added to the solution?
    7·2 answers
  • Give the formula or name for the following binary acids:
    14·1 answer
  • What must be true about two objects if heat is flowing between them?
    7·2 answers
  • What do you call a circuit with only one path
    8·1 answer
  • He diagram below represents part of the oxygen cycle.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!