# Chemistry Stoichiometry Worksheet

Stoichiometry Worksheet and Key2 KClO3 è 2 KCl + 3 O2
1. How many moles of O2 will be formed from 1.65 moles of KClO3?
1.65 mol KClO3
mol O2
mol KClO3
=
mol O2
2. How many moles of KClO3 are needed to make 3.50 moles of KCl?
3.50mol KCl
=
mol KClO3
3. How many moles of KCl will be formed from 2.73 moles of KClO3?
=
4 Fe + 3 O2 è 2 Fe2O3
4. How many moles of Fe2O3 are produced when 0.275 moles of Fe is reacted?
0.275 mol Fe
=
mol Fe2O3
5. How many moles of Fe2O3 are produced when 31.0 moles of O2 is reacted?
=
6. How many moles of O2 are needed to react with 8.9 moles of Fe?
=
2 H2O è 2 H2 + O 2
7. How many moles of O2 are produced when 1.26 moles of H2O is reacted?
8. How many moles of H2O are needed to produce 55.7 moles of H2?
9. If enough H2O is reacted to produce 3.40 moles of H2, then how may moles of O2 must have been made?
(a bit challenging, but just think about it and you can probably figure it out)
2 KClO3 è 2 KCl + 3 O2
10. How many grams of O2 will be formed from 3.76 grams of KClO3?
3.76g KClO3
1 mol KClO3
122.55 g KClO3
g O2
mol O2
mol O2
mol KClO3
g O2
=
11. How many grams of KClO3 are needed to make 30.0 grams of KCl?
30.0 g KCl
mol KCl
g KClO3
mol KClO3
g KCl
mol KCl
mol KClO3
=
g KClO3
=
g KCl
=
g Fe2O3
=
g Fe2O3
12. How many grams of KCl will be formed from 2.73 g of KClO3?
2.73 g KClO3
4 Fe + 3 O2 è 2 Fe2O3
13. How many grams of Fe2O3 are produced when 42.7 grams of Fe is reacted?
42.7 g Fe
mol Fe
g Fe
mol Fe2O3
mol Fe
g Fe2O3
mol Fe2O3
14. How many grams of Fe2O3 are produced when 17.0 grams of O2 is reacted?
17.0 g O2
15. How many grams of O2 are needed to react with 125 grams of Fe?
=
Some cars can use butane (C4H10) as fuel:
2 C4H10 + 13 O2 è 8 CO2 + 10 H2O
16. How many grams of CO2 are produced from the combustion of 100. grams of butane?
100. g C4H10
=
g CO2
=
g O2
17. How many grams of O2 are needed to react with of 100. grams of butane?
100. g C4H10
18 How many grams of H2O are produced when 5.38g of O2 is reacted?
Stoichiometry Worksheet and Key
2 KClO3 è 2 KCl + 3 O2
1. How many moles of O2 will be formed from 1.65 moles of KClO3?
1.65 mol KClO3
mol O2
mol KClO3
=
mol O2
2. How many moles of KClO3 are needed to make 3.50 moles of KCl?
3.50mol KCl
=
mol KClO3
3. How many moles of KCl will be formed from 2.73 moles of KClO3?
=
4 Fe + 3 O2 è 2 Fe2O3
4. How many moles of Fe2O3 are produced when 0.275 moles of Fe is reacted?
0.275 mol Fe
=
mol Fe2O3
5. How many moles of Fe2O3 are produced when 31.0 moles of O2 is reacted?
=
6. How many moles of O2 are needed to react with 8.9 moles of Fe?
=
2 H2O è 2 H2 + O 2
7. How many moles of O2 are produced when 1.26 moles of H2O is reacted?
8. How many moles of H2O are needed to produce 55.7 moles of H2?
9. If enough H2O is reacted to produce 3.40 moles of H2, then how may moles of O2 must have been made?
(a bit challenging, but just think about it and you can probably figure it out)
2 KClO3 è 2 KCl + 3 O2
10. How many grams of O2 will be formed from 3.76 grams of KClO3?
3.76g KClO3
1 mol KClO3
122.55 g KClO3
g O2
mol O2
mol O2
mol KClO3
g O2
=
11. How many grams of KClO3 are needed to make 30.0 grams of KCl?
30.0 g KCl
mol KCl
g KClO3
mol KClO3
g KCl
mol KCl
mol KClO3
=
g KClO3
=
g KCl
=
g Fe2O3
=
g Fe2O3
12. How many grams of KCl will be formed from 2.73 g of KClO3?
2.73 g KClO3
4 Fe + 3 O2 è 2 Fe2O3
13. How many grams of Fe2O3 are produced when 42.7 grams of Fe is reacted?
42.7 g Fe
mol Fe
g Fe
mol Fe2O3
mol Fe
g Fe2O3
mol Fe2O3
14. How many grams of Fe2O3 are produced when 17.0 grams of O2 is reacted?
17.0 g O2
15. How many grams of O2 are needed to react with 125 grams of Fe?
=
Some cars can use butane (C4H10) as fuel:
2 C4H10 + 13 O2 è 8 CO2 + 10 H2O
16. How many grams of CO2 are produced from the combustion of 100. grams of butane?
100. g C4H10
=
g CO2
=
g O2
17. How many grams of O2 are needed to react with of 100. grams of butane?
100. g C4H10
18 How many grams of H2O are produced when 5.38g of O2 is reacted?

Don't use plagiarized sources. Get Your Custom Essay on
Chemistry Stoichiometry Worksheet
Just from \$13/Page
Calculate the price
Pages (550 words)
\$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Writall
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Other
Thank you
Customer 454677, March 18th, 2021
Other
Best writer ever!!!
Customer 454983, February 1st, 2022
Other
Thank you
Customer 454677, March 18th, 2021
Health Care
I got an A and got a good feedback from the instructor. Thanks
Customer 453877, May 20th, 2020
Other
Best writer ever
Customer 454983, February 21st, 2022
Psychology
I just finished reading this work good strong start and conclusion too. In addition follows APA guidelines. Thanks.
Customer 453877, April 18th, 2020
Philosophy
omgggg i got a A- . thank you soooo much
Customer 454429, June 29th, 2020
Psychology
The only issue that I have is that the resources submitted initially were not used and I had to send for a revision which made my paper SUPER late!! Thank you!
Customer 454801, August 2nd, 2021
Statistics
Utilized my word provided; synthesized and organized. Including a timely delivery, including revisions. Very pleased.
Customer 455341, May 1st, 2022
Nursing
Thank you so much.
Customer 455319, April 19th, 2022
Statistics
I got an A. Thanks
Customer 453877, January 6th, 2021
Art (Fine arts, Performing arts)
Thank you
Customer 454677, April 21st, 2021
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend