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
Varvara68 [4.7K]
2 years ago
12

Consider the following reaction: 3Fe(s) + 4H₂O(g) ➞ Fe₃O₄(s) + 4H₂(g). To answer the following question: "How many moles of hot

water vapor (steam) must react to produce 275 g of Fe₃O₄?" How many steps will it take to get the answer? *
4 points
1
2
3
4
Chemistry
1 answer:
UkoKoshka [18]2 years ago
7 0
X moles of hot water vapor(H2O) * 1 mol Fe3O4 / 4 mol H2O * 233.55g Fe3O4 / 1 mol = 275 g

Solve the equation

x = 4.71 mol of hot water vapor (steam)

Can you mark me as brainliest?
You might be interested in
How many particles are in one mole of copper (II) sulfate, CuSO4?
Kobotan [32]
2. Avogadro’s number
3 0
2 years ago
Temperature of the water to the nearest degree:___ °C
forsale [732]

Answer:

From the image the answer is 24.

8 0
3 years ago
Read 2 more answers
An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?
Katen [24]

Answer:

produced from magma

Explanation:

it is formed when the rock cools from being magma or lava

5 0
2 years ago
A scientist prepared an aqueous solution of a 0.45 M weak acid. The pH of the solution was 2.72. What is the percentage ionizati
aleksandr82 [10.1K]

Answer:

0.42%

Explanation:

<em>∵ pH = - log[H⁺].</em>

2.72 = - log[H⁺]

∴ [H⁺] = 1.905 x 10⁻³.

<em>∵ [H⁺] = √Ka.C</em>

∴ [H⁺]² = Ka.C

∴ ka = [H⁺]²/C = (1.905 x 10⁻³)²/(0.45) = 8.068 x 10⁻⁶.

<em>∵ Ka = α²C.</em>

Where, α is the degree of dissociation.

<em>∴ α = √(Ka/C) </em>= √(8.065 x 10⁻⁶/0.45) = <em>4.234 x 10⁻³.</em>

<em>∴ percentage ionization of the acid = α x 100</em> = (4.233 x 10⁻³)(100) = <em>0.4233% ≅ 0.42%.</em>

4 0
3 years ago
Read 2 more answers
A.it is physical change
PIT_PIT [208]
A physical change is when something don't permanently change
5 0
2 years ago
Other questions:
  • Equivalencia de un año luz en SI
    8·1 answer
  • Explain how the structure and bonding in bromine account for it's relatively low melting point. [3]
    9·2 answers
  • Which of the following will be most soluble in octane?
    8·1 answer
  • Can you please help me
    14·1 answer
  • How many moles of gas are required to exert 15.4 atm of pressure in a 2.92 L container at 32.0°C
    8·1 answer
  • The beta oxidation pathway degrades activated fatty acids (acyl-CoA) to acetyl-CoA, which then enters the citric acid cycle. Add
    11·2 answers
  • Enzymes are essential to cells because they are responsible to either making or breaking other molecules the cells need. True or
    14·2 answers
  • PLEASE HELP- CHEMISTRY QUIZ
    13·1 answer
  • Which statement is correct about charges?
    10·2 answers
  • Is the supply of copper-rich ores greater or lesser than iron-rich ores?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!