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
sleet_krkn [62]
3 years ago
7

B) Quelle est la masse de tétraoxyde de trifer (Fe3O4) produite si 3,60 moles de trioxyde de

Chemistry
1 answer:
hram777 [196]3 years ago
7 0

Answer:

626,4 g de Fe₃O₄

Explanation:

Nous commencerons par écrire l'équation équilibrée de la réaction entre le fer (Fe) et le trioxyde d'aluminium. Ceci est donné ci-dessous:

9Fe + 4Al₂O₃ -> 3Fe₃O₄ + 8Al

De l'équation équilibrée ci-dessus,

4 moles d'Al₂O₃ ont réagi pour produire 3 moles de Fe₃O₄.

Par conséquent, 3,6 moles d'Al₂O₃ réagiront pour produire = (3,6 × 3) / 4 = 2,7 moles de Fe₃O₄

Ainsi, 2,7 moles de Fe₃O₄ sont produites à partir de la réaction.

Enfin, nous déterminerons la masse massique de Fe₃O₄ produite par la réaction. Ceci peut être obtenu comme suit:

Mole de Fe₃O₄ = 2,7 moles

Masse molaire de Fe₃O₄ = (3 × 56) + (4 × 16)

= 168 + 64

= 232 g / mol

Masse de Fe₃O₄ =?

Mole = masse / masse molaire

2,7 = Masse de Fe₃O₄ / 232

Croiser multiplier

Masse de Fe₃O₄ = 2,7 × 232

Masse de Fe₃O₄ = 626,4 g

Par conséquent, 626,4 g de Fe₃O₄ sont produits à partir de la réaction

You might be interested in
The student adds 0.0010 mol of NaOH(s) to solution Y, and adds 0.0010 mol of NaOH(s) to solution Z. Assume that the volume of ea
julia-pushkina [17]

Answer:

The answer is in the explanation.

Explanation:

A buffer is defined as the aqueous mixture of a weak acid and its conjugate base or vice versa. Buffers are able to avoid the pH change of a solution when strong acid or bases are added (As NaOH).

Based on the experiment, it is possible that the solution Z was a buffer and Y another kind of solution. For this reson, pH of the solution Y changes much more than the pH of solution Z changes despite the amount of NaOH added is the same in both solutions.

6 0
3 years ago
Nitrogen gas plus hydrogen gas under pressure and at high temperature turns into ammonia. which of the chemical equations matche
nasty-shy [4]
Sorry if wrong .......

3 0
4 years ago
Read 2 more answers
Calculate the molar mass of ZnCr04
kodGreya [7K]

Answer:

181.403 g/mol is the answer as it is Zinc chromate

Explanation:

8 0
3 years ago
Read 2 more answers
Carbon dioxide is a molecule made up of a single carbon atom double bonded to two oxygen atoms. The electrons are shared equally
wolverine [178]

Answer:

The type of bonding does carbon dioxide have is covalent bonding.

Explanation:

There are 2 broadly types of chemical bonds present:

1. <u>Covalent bond:</u> This bond is present when there is sharing of electrons between two elements.

2.<u> Ionic bond:</u> This type of bond is formed when there is a complete transfer of electrons from one element to another element. In this bonding one element is always a metal and another is a non-metal.

We are given that a carbon atom is double bonded to two oxygen atoms. <u>Carbon and oxygen both are non-metals and hence, the bonds between them will be purely covalent in nature. </u>

Also, the valency of the carbon atom is 4. Thus, in the given case, the carbon atom is bonded to 2 oxygen atoms via double bonds. Thus, they all complete their octet by sharing the electrons.

<u>Hence, the type of bonding does carbon dioxide have is covalent bonding.</u>

3 0
3 years ago
Read 2 more answers
What is the chemical reaction for Mg + NaOH also with the ionic equations and subscripts?
Jobisdone [24]
<span>The chemical reaction for Mg + NaOH is 

Mg (s) + NaOH (aq) -> Mg (OH)2 (s) + Na (aq)
s stands for solid, aq stands for aqueous</span>
3 0
3 years ago
Other questions:
  • WILL MARK BRAINLIEST
    11·1 answer
  • Given following electron configurations, 1s22s22p63s23p64s23d104p65s24d9 and 1s22s22p63s23p64s23d104p65s14d10.
    14·1 answer
  • Which of the following is NOT a type of pseudoscience?
    6·1 answer
  • Which of the following statements is true?
    15·1 answer
  • If an object has a mass of 20 kg, what is the force of gravity acting on it on earth? A. 196 N B. 32.67 N End of exam C. 1.96 kg
    7·1 answer
  • In which direction does heat energy move?
    7·2 answers
  • When coke burns in air then evolved gas is​
    10·1 answer
  • In comparing a 0.25 molality aqueous NaCl solution to a 0.25 molality aqueous CaCl 2 solution:
    10·1 answer
  • Find the pH of 0.0025M sodium benzoate
    8·1 answer
  • a 25.0-ml volume of a sodium hydroxide solution requires 19.6 ml of a 0.189 m hydrochloric acid for neutralization. a 10.0- ml v
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!