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
Elodia [21]
3 years ago
11

How many moles are in 24.3g of iron (II) oxide?

Chemistry
1 answer:
wlad13 [49]3 years ago
6 0

Mark me Brainliest..... ......

You might be interested in
Without constants you would not know which variable affected the
bonufazy [111]
Two independent variables could change at the same time, and you would not know which variable affected the dependent variable
4 0
3 years ago
Hydrazine (N2H4) is used as rocket fuel. It reacts with oxygen to form nitrogen and water.
Marina86 [1]

Answer:

See explanation below for answers

Explanation:

This is a stochiometry reaction. LEt's write the overall reaction again:

N₂H₄ + O₂ ---------> N₂ + 2H₂O

This reaction is taking place at Standard temperature and pressure conditions (STP) which are P = 1 atm and T = 273 K.  To know the volume of N₂ formed, we need to know first how many moles are formed, and this can be calculated with the reagents and the limiting reagent. Let's calculate the moles first of the reagents:

MM N₂H₄ = 32 g/mol;    MM O₂ = 32 g/mol

mol N₂H₄ = 2000 / 32 = 62.5 moles

mol O₂ ? 2100 / 32 = 65.63 moles

Now that we have the moles, we need to apply the stochiometry and calculate the limiting reagent. According to the overall reaction we have a mole ratio of 1:1 between N₂H₄ and O₂, therefore:

1 mole N₂H₄ ---------> 1 mole O₂

62.5 moles ----------> X

X = 62.5 moles of O₂

But we have 65.63 moles, therefore, the limiting reactant is the N₂H₄.

We also have a 1:1 mole ratio with the N₂, so:

moles N₂H₄ = moles N₂ = 62.5 moles

Now that we have the moles, we can calculate the volume with the ideal gas equation:

PV = nRT

V = nRT / P

R: gas constant (0.082 L atm / K mol)

Replacing we have:

v = 62.5 * 0.082 * 273 / 1

V = 1399.13 L of N₂

Now, how many grams of the excess remains?, we know how many moles are reacting so, let's see how much is left:

moles remaining = 65.63 - 62.5 = 3.12 moles

then the mass of oxygen:

m = 3.12 * 32 = 100.16 g of O₂

7 0
3 years ago
Read 2 more answers
Is granite rock a compound, element, mixture? Explain
Ghella [55]
It is a <u>mixture</u> of minerals mainly of corps that crystalizes of magma below earths surface.
7 0
3 years ago
Please help me with this thank you!
ludmilkaskok [199]

Answer:

1. B

2. C

3. A

4. E

5. D

6. A, B

7. C, E

8. D

5 0
2 years ago
How is the greenhouse effect related to global warming?
alina1380 [7]

Answer:

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.Which is the reason why global warming is related to the greenhouse in our present world.

hope this helped :)

5 0
3 years ago
Other questions:
  • Does spring and Fall exist at the poles?
    13·2 answers
  • Wh
    7·2 answers
  • Which pair of substances would most likely result in the production of a solid when reacting with a base? litmus and phenolphtha
    13·2 answers
  • The equilibrium constant, kp, equals 3.40 at 25°c for the isomerization reaction: cis-2-butene ⇌ trans-2-butene. if a flask init
    10·2 answers
  • Which of these is not true of Bohr's model of the atom ?
    11·2 answers
  • The balanced equation given below means: CH4 + 2 O2 → CO2 + 2H2O The balanced equation given below means: CH4 + 2 O2 → CO2 + 2H2
    12·2 answers
  • At 55.0 ∘C, what is the vapor pressure of a solution prepared by dissolving 78.4 g of LiF in 253 g of water? The vapor pressure
    11·1 answer
  • 1 or 2 topics or two lessons should be explained in an illustrated childrens book minimum of 10 pages must have 3 or more senten
    5·1 answer
  • Question 5 of 5
    15·1 answer
  • Calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31°C, given that the Ksp of Ca(OH)2 is 4.96 x 10-6 at that tem
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!