100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Stoichiometry and Combustion Reactions CA$12.52   Add to cart
Quickly navigate to
Preview
  2.  
  3. Marianopolis College (MC )
  4.  
  5. Health Science
  6.  
  7. CHEM101

Summary

Summary Stoichiometry and Combustion Reactions
 6 views  0 purchase

The document begins with an explanation of what goes on in a combustion reaction to gain a general understanding. The document then explains the law of conservation of mass and then provides step-by-step guided examples. The document highlights the differences between unbalanced and balanced chemic...

[Show more]

Preview 2 out of 5  pages

Document information

  • August 31, 2023
  • 5
  • 2022/2023
  • Summary

Subjects

Written for

All documents for this subject (8)

Seller

avatar-seller
nissaabb2004

Content preview

Combustion
C' ✗ Hy +
¥2 →
CÉz +
H2O
I *
or

Cx Hy Oz E. z + →
CO2 H2O +




•
In a combustion analysis all the
original C gets trapped in coz and all of the

H in H2O
An of Oz in used compound needs found
•

excess
gas so any 0 from the to be


by difference ( ie : cannot be found directly from the CO2 or Hzo) or with moissperent
data
Any compound need to be found difference
•

other elements found in the
by Law of
using
conservation of Matter or with mass percent data
•

Combustion analysis can only determine mass percent values and empirical formula 's


Law Of Conservation Of Mass : Combustion of 247.2
ex .


analysis a
mg
Cxlty :
sample of an unknown compound
100% t.ctt.tl
yielded 440.6 of and
180.4mg
=


mg CO2

gcxlty =
gc +
gH of -120 This compound
. was known to contain

only C, H and 0 Determine the empirical formula
. .




Step 1 .
1g -01000mg

1g 1m01 CO2 1m01 C
12.019C
( 440.6mg CO2 Step 4-
0.12029C
: ✗ × × ✗
grams
=

1000mg 1m01 coz lmolc
44.01g coz
MOI C
1.498 Moto
,ooYmg É
0×-2=12
=



Ym°%t¥ 0.02019g
'
Hgrams 180.4mg H2O H
: ✗ ✗
✗ =
✗
Moto -2=2*6--3 MOI
18.016g H2O

MOIH 2-99
( ✗ Hy Oz
grams
:

247.2mg ( ✗ Hy Oz ✗ 19 =
0.24729 C. ✗ Hyoz =

moto ✗ 2--6 =D
1000mg Empirical
Formula :
step 2 .
Step -3
1m01 C C , Hoo,

g. C×HyOz= gc
+
gH +
go 0.1202g C ✗ =
0.01000 mac

12.01g ,
90 =

0.2472g Cxltyoz
-


(0.1202g Ct 0.02019g H)
1m01 It
90
=


0.1068g 0 0.02019g Hx = 0.02 002m01 H
1.
oogg µ


0 ✗ 1m01 0
0.1068g = 0-006675 moi O
16 .

00g 0

, BALANCING

matter is neither created nor destroyed
CH 4+02 →
CO2 + H2O
Bhai
⑧•*•o¥o%⑥• + → →
§
Bea
+
•OB•

unbalanced chemical equation : CGH , 206+02 → coz H2O +




balanced chemical equation :
CGH , 206 +602 → GCOE 6h20
-


adding coefficients for equal atoms

on both sides




AIKO-7.01-5

* distinct form of element in the same physical State

Diamonds and graphite are alltropes of carbon and
differ in bonding S Structure



MASS PERCEN
-




percent by mass of element in compound


( element)
Mass of element ✗ in 1m01 of compound
mass percent = ✗ 100%
Mass of 1m01 of compound


( compound)
Mass of the compound
mass percent = ✗ 100
mass of the mixture

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller nissaabb2004. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$12.52. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

76449 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$12.52
  • (0)
  Add to cart