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
Annette [7]
2 years ago
9

An unbalanced equation is shown. In this reaction, 200.0 g of FeS2 is burned in 100.0 g of oxygen, and 55.00 g of Fe2O3 is produ

ced.
4FeS2 + 11O2 mc021-1.jpg Fe2O3 + SO2
What is the percent yield of Fe2O3?
Chemistry
1 answer:
Crazy boy [7]2 years ago
3 0
<span>4FeS2 + 11O2 = 2Fe2O3 + 8SO2</span>

Percent yield is calculated as the actual yield divided by the theoretical yield multiplied by 100.

Actual yield = 55 g ( 1 mol / 159.69 g ) = 0.34 mol Fe2O3

To find for the theoretical yield, we first determine the limiting reactant.

100 g O2 ( 1 mol / 32 g) = 3.13 mol O2
200 g FeS2 (1 mol / 119.98g) = 1.67 mol FeS2

Therefore, the limiting reactant is O2.

Theoretical yield = 3.13 mol O2 ( 2 mol Fe2O3 / 11 mol O2 ) = 0.57 mol Fe2O3

Percent yield = (0.34 mol / 0.57 mol) x 100 = 59.74%
You might be interested in
A composition of reflections over parallel lines is the same as a __________.
8090 [49]

Answer : Option A) Translation


Explanation : A composition of reflections over parallel lines is the same as a <u>Translation.</u>


To identify if the composition of reflections over parallel lines are same as translation or not?


We can check using a picture of some shape in the plane. Place the picture on the right side of two vertical parallel. Now, we can see the reflected the shape over the nearest parallel line, then check the reflection over the other parallel line. We see that the shape winds up in the same orientation, like it was just shifted over to the right. Hence, it is translation.

6 0
3 years ago
Read 2 more answers
Which is bigger in width mm,cm,m,km
Kay [80]
Km is the biggest measure in width (even if there are bigger measures like Mm, Gm, Tm).

1 Km = 1000 m, 100000 cm and 1000000 mm
4 0
3 years ago
Read 2 more answers
The movement of water both on and<br> above Earths surface
DanielleElmas [232]

The movement of water on and above the earth's surface is called the hydrologic cycle, or the water cycle. Hope this helps!

4 0
2 years ago
What processes contribute water to surface water sources?(science)
GrogVix [38]
Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.
5 0
2 years ago
A flask contains a mixture of hydrogen gas and water vapor at STP. If the pressure of the water vapor is 19.5 mmHg, then what is
horrorfan [7]

Answer:

I would say A but not sure

Explanation:

7 0
2 years ago
Other questions:
  • How should an ethical scientist response if an experiment does not confirm a hypothesis? Question 2 options:Revise the hypothesi
    7·1 answer
  • What element/compounds are used in the melting of ice?
    14·1 answer
  • Why the dipole moment of Co2 is zero and that of H2O is 1.85D?
    14·1 answer
  • KOH and LiOH are examples of (URGENT)
    12·2 answers
  • Measure the mass of a truckful of grain, use:
    11·2 answers
  • What is the mass of an object that is accelerated 4 m/s2 by a force of 180 N?<br> kg<br> Asap!!!!!!!
    5·2 answers
  • Which of the following genotypes would result in a red phenotype?
    7·1 answer
  • Which block do you think will slide down the ramp most quickly?
    14·2 answers
  • 15 Points. Pls give a real answer this is due in an hour.
    14·1 answer
  • 1. The maximum recommended amount of citric acid (H3C6H5O7; the 3 hydrogens listed first are the acidic hydrogens – the only hyd
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!