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
Alenkinab [10]
3 years ago
9

If I need 2.2 moles of CO2 , and I have excess Fe2O3 , how many moles of C do I need?

Chemistry
1 answer:
olchik [2.2K]3 years ago
6 0

Answer:

0.733 mol.

Explanation:

  • From the balanced equation:

<em>2Fe₂O₃ + C → Fe + 3CO₂,</em>

It is clear that 1.0 moles of Fe₂O₃  react with 1.0 mole of C to produce 1.0 mole of Fe and 3.0 moles of CO₂.

  • Since Fe₂O₃ is in excess, C will be the limiting reactant.

<u><em>Using cross multiplication:</em></u>

1.0 mole of C produces → 3.0 moles of CO₂, from the stichiometry.

??? mole of C produces → 2.2 moles of CO₂.

∴ The no. of moles of C needed to produce 2.2 moles of CO₂ = (1.0 mole of C) (2.2 mole of CO₂) / (3.0 mole of CO₂) = 0.733 mol.

You might be interested in
1. Baking powder is a 1:1 molar mixture of cream of tartar (KHC4H4O6) and baking soda (NaHCO3). A recipe calls for two teaspoons
olasank [31]

Answer:

3.57 g.

Explanation:

  • The ratio of cream of tartar (KHC₄H₄O₆) to baking soda (NaHCO₃) in the baking powder is 1:1.
  • We need to calculate the number of moles of (8.0 g) of cream of tartar (KHC₄H₄O₆) using the relation:<em> n = mass / molar mass,</em>

mass of cream of tartar (KHC₄H₄O₆) = 8.0 g.

molar mass of cream of tartar (KHC₄H₄O₆) = 188.1772 g/mol.

∴ n of cream of tartar (KHC₄H₄O₆) = mass /molar mass = (8.0 g) / (188.1772 g/mol) = 0.0425 mol.

  • Since the mole ratio of the two components is 1:1, the no. of moles of baking soda (NaHCO₃) should be added is 0.0425 mol.
  • The quantity of baking soda (NaHCO₃) can be calculated using the relation:

mass = n x molar mass = (0.0425 mol)(84.007 g/mol) = 3.57 g.

3 0
3 years ago
. An atom of nitrogen has an atomic
GrogVix [38]

Here's the Answer !

Atomic number = no. of electrons = no. of protons, therefore :

  • no. of electrons = 7

  • no. of protons = 7

and mass number = no. of protons + no. of neutrons

so,

  • 7 + no. of neutrons = 14

  • no. of neutrons = 7
5 0
3 years ago
Today, nuclear power plants rely on fission. While fusion reactions have been used in nuclear bombs, many scientists and enginee
Zigmanuir [339]

Explanation:

nuclear fusion yields more energy than nuclear fission and the products of the reaction are not radioactive

5 0
3 years ago
On a violin, the highest note Mandy can play is an A-note, which produces a sound wave with a high frequency. The lowest note sh
koban [17]

Answer:

the g note moves slower then the a note

7 0
3 years ago
Read 2 more answers
Describe how lead sulfate can be prepared using silver hydroxide​
Anastaziya [24]

Answer:

i would have to add and divide

Explanation:

adding and dividing will get you the answer

4 0
2 years ago
Other questions:
  • In the following reaction, what coefficient will be written before the oxygen molecule (O2) to balance the chemical equation?
    5·1 answer
  • The structure of ozone most closely resembles 1. , a linear molecule with different lengths of chemical bonds. 2. , a bent molec
    6·1 answer
  • Two forces that are not equel in size are
    15·1 answer
  • If a parent cell has 23 chromosomes and reproduces asexually through mitosis,how many chromosomes will each of its daughter cell
    7·1 answer
  • 18. Investigue por qué en el bloque "d" se aplica la fórmula n-1 y en el bloque "f" n-2.​
    5·1 answer
  • Sodium chloride, an ionic compound, has a high melting point whereas paraffin wax, a molecular compound, melts easily.Explain wh
    15·1 answer
  • How many grams of carbon are in 1.000mole of carbon?
    6·2 answers
  • Just wondering...
    7·2 answers
  • Reaction type <br> __HCl + __Mg -&gt; __MgCl2 + __H2
    7·1 answer
  • What is the atomic mass of Sulfur?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!