![Page 1: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/1.jpg)
Moles
![Page 2: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/2.jpg)
Moles
Like a recipe:
Reactants Products
2H2(g) + O2(g) 2H2O(l)
coefficients subscripts
Balancing Eqns
![Page 3: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/3.jpg)
Moles
Symbols Yields or Produces(s) solid(l) liquid (pure liquid)(aq) aqueous (dissolved in water)(g) or gas
Balancing Eqns
![Page 4: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/4.jpg)
Moles
Copper(II) Chloride reacts with Iron(III) Sulfate to form Copper(II)Sulfate and Iron(III) Chloride
Aluminum nitrate reacts with Sodium hydroxide to form Aluminum hydroxide and Sodium nitrate
Balancing
![Page 5: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/5.jpg)
MolesSome Types of Reactions
1. Synthesis
Al + Cl2 AlCl3
CaO(s) + CO2(g) CaCO3(s)
2. Decomposition
HgO(s) Hg(l) + O2(g)
CaCO3(s) CaO(s) + CO2(g)
![Page 6: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/6.jpg)
Moles
3. Combustion
Fe + O2 Fe2O3
C4H10 + O2 CO2 + H2O
4. Other TypesSingle ReplacementDouble Replacement
Some Types of Reactions
![Page 7: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/7.jpg)
MolesKnow your reactions well!!!!
![Page 8: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/8.jpg)
Moles
Mole
1 dozen = 12 items
1 mole = 6.022 X 1023 atoms/molecules
1 gram hydrogen = 6.022 X 1023 atoms of hydrogen
Stoichiometry
![Page 9: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/9.jpg)
Moles
![Page 10: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/10.jpg)
Moles
![Page 11: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/11.jpg)
MolesStoichiometry
Grams Moles Atoms
1 g H 1 mole H 6.02 X 1023 atms
2 g H
12 g C
36 g C
48 g O
![Page 12: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/12.jpg)
MolesStoichiometry
Grams Moles Molecules Atoms
16 g CH4
8 g CH4
88 g CO2
131 g Ba(NO3)2
![Page 13: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/13.jpg)
Moles
1. Molar Mass = mass of one mole
2. Element= atomic mass
1 mole of O = 16.0 grams
3. Molecule or Compound – sum of all the atoms
Molar Mass
![Page 14: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/14.jpg)
Moles
![Page 15: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/15.jpg)
Moles
Calculate the molar mass of
Barium
O2
BaCl2?
Fe2(SO4)3?
Molar Mass
![Page 16: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/16.jpg)
Moles
Grams
Moles
Atoms
1. How many C atoms are present in 18.0 g? (Ans: 9.03 X 1023 C)
2. What is the mass of 1.20 X 1024 atoms of Na? (Ans: 45.8 grams)
GMA
![Page 17: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/17.jpg)
Moles
3. What is the mass of 1.51 X 1023 atoms of Be?(Ans: 2.26 g)
5. How many atoms and grams are in 0.400 mol of Radium? (Ans: 90.4 g, 2.41 X 1023 atoms)
GMA
![Page 18: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/18.jpg)
Moles
1. Monoatomic Elements (C, Fe, Au)GMA
2. Molecules and Ionics (H2O, CaCl2, O2)GMMA
GMMA
![Page 19: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/19.jpg)
Moles
3. Molecules and formula units work the same when convertingMolecules = Molecular CompsFormula Units = Ionic Compounds
GM M
A
GMMA
![Page 20: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/20.jpg)
Moles
1. How many calcium and chlorine atoms are in 200.0 grams of Calcium Chloride?
(Ans: 2.17 X 1024 atoms Cl)
GMMA
![Page 21: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/21.jpg)
Moles
2. How many hydrogen and oxygen atoms are in 3.60 grams of H2O? (Ans: 2.41 X 1023 atoms H)
GMMA
![Page 22: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/22.jpg)
Moles
3. Given 3.01X1024 molecules of SO3, find everything else.
4. Given 3.01 X 1022 molecules of Iron(III)bromide, find everything else.
GMMA
![Page 23: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/23.jpg)
Moles
1. How many carbon atoms are in 36.0 grams of carbon (1.81 X 1024)
2. How many carbon atoms are in 36.0 grams of C2H6? (Ans:1.45 X 1024 atoms of C)
Mixed Examples
![Page 24: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/24.jpg)
Moles
Homework Problems (find everything else)
a) 10.0 g C
b) 10.0 g C2H6
c) 4.0 X 1023 atoms of S
d) 4.0 X 1023 molecules of SO2
e) 0.44 moles of SO2
Mixed Examples
![Page 25: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/25.jpg)
Moles
1. Empirical formula - simplest ratio of the elements in a compound
2. Formula Empirical Form.
C2H2
Al4S6
C6H12O6
C12H24O12
Empirical Formula
![Page 26: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/26.jpg)
Moles
1. What is the EF of a compound that has 0.900 g Ca and 1.60 g Cl?
Rules
- Go to moles
- Divide by the smaller
Empirical Formula
![Page 27: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/27.jpg)
Moles
2. What is the EF of a compound that is 66.0 % Ca and 34.0% P?
3. What is the EF of a compound that is 43.7 % P and 56.3 % O?
Empirical Formula
![Page 28: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/28.jpg)
Moles
1. Empirical –ratios of the elements2. Molecular –true number of each
element
Molecular Formula
![Page 29: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/29.jpg)
Moles
EF MF
CH2O CH2O (30 g/mol)
C2H4O2 (60 g/mol)
C3H6O3 (90 g/mol)
C4H8O4 (120 g/mol)
Molecular Formula
![Page 30: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/30.jpg)
Moles
1. What is the MF of benzene if it has an EF of CH and a molar mass of 78.0 g?
2. What is the MF of a compound that is 40.9% C, 4.58 % H and 54.5 % O? It has a molar mass between 350 and 360 g/mol.
Molecular Formula
![Page 31: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/31.jpg)
Moles
What coefficients mean:
2 Na + Cl2 2NaCl
2 Na 1 Cl2 2NaCl
4 Na
6 Na
Reaction Stoich.
![Page 32: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/32.jpg)
Moles
2 Na + Cl2 2NaCl
4 Cl2
2 moles Na
10 moles Na
ONLY WORKS FOR MOLES AND MOLECULES
Reaction Stoich.
![Page 33: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/33.jpg)
Moles
1. How many moles of H2 and O2 must react to form 6 moles of H2O?
2. How many moles of KCl and O2 are formed from the decomposition of 6 moles of KClO3?
Reaction Stoich.
![Page 34: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/34.jpg)
Moles
3. How many grams of oxygen are needed to react with 14.6 g of Na to form Na2O? (Ans: 5.08 g)
4. How many grams of P4 and O2 are needed to make 3.62 g of P2O5? (Ans: 1.58 g, 2.04 g)
Reaction Stoich.
![Page 35: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/35.jpg)
Moles
5. What mass of oxygen is needed to react with 16.7 g of iron to form Iron(III)oxide? (Ans: 7.18 g)
4Fe + 3O2 2Fe2O3
Reaction Stoich.
![Page 36: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/36.jpg)
Moles
Calculate the mass of sodium bromide and oxygen that are formed from the decomposition of 50.0 grams of sodium bromate (NaBrO3).
(34.1 g NaBr, 15.9 g O2)
![Page 37: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/37.jpg)
Moles
1. Sandwich analogy:
13 slices of bread
4 pieces of turkey
Maximum # of sandwiches?
2. Limiting Reactant – Totally consumed in a reaction. No leftovers
Limiting Reactant
![Page 38: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/38.jpg)
Moles
1. How many grams of H2SO4 can be formed from the rxn of 5.00 moles of SO3 and 2.00 moles of H2O?
SO3 + H2O H2SO4
(Ans: 196 g)
Limiting Reactant
![Page 39: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/39.jpg)
Moles
1. How many grams of H2O can be formed from the rxn of 6.00 moles of H2 and 4.00 moles of O2?
O2 + H2 H2O
Limiting Reactant
![Page 40: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/40.jpg)
Moles
2. How many grams of NaCl can be formed from the reaction of 0.300 mol of Na and 0.100 mol of Cl2?
2Na + Cl2 2NaCl
(Ans: 11.7 g)
Limiting Reactant
![Page 41: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/41.jpg)
Moles
3. How many grams of Ag can be formed from the rxn of 2.00 g of Zn and 2.50 g of silver nitrate? How much excess reactant remains?
Zn + AgNO3 Ag + Zn(NO3)2
(Ans: 1.59 g Ag, 1.52 g xs zinc)
Limiting Reactant
![Page 42: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/42.jpg)
Moles
4. How many grams of Ba3(PO4)2 can be formed from the rxn of 3.50 g of Na3PO4 and 6.40 g of Ba(NO3)2?
Na3PO4 + Ba(NO3)2 Ba3(PO4)2 + NaNO3
(Ans: 4.92 g)
Limiting Reactant
![Page 43: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/43.jpg)
Moles
6. How many grams of Ag2S can be formed from the rxn of 15.6 g of Ag and 2.97 g of H2S? (Assume O2 is in excess)
4Ag + 2H2S + O2 2Ag2S + 2H2O
(Ans: 18.1 g)
Limiting Reactant
![Page 44: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/44.jpg)
Moles
A. Formula:
Actual Yield X 100 = % Yield
Theoretical Yield
Percent Yield
![Page 45: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/45.jpg)
Moles
1. What is the % yield if you start with 10.00 grams of C and obtain 1.49 g of H2 gas?
C + H2O CO + H2
(Ans: 89.4%)
Percent Yield
![Page 46: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/46.jpg)
Moles
2. Carbon was heated strongly in sulfur(S8) to form carbon disulfide. What is the percent yield if you start with 13.51 g of sulfur and collect 12.5 g of CS2?
4C + S8 4CS2
(Ans: 78.0%)
Percent Yield
![Page 47: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/47.jpg)
Moles
3. 36.7 grams of CO2 were formed from the rxn of 40.0 g of CH3OH and 46.0 g of O2. What is the % yield?
2CH3OH + 3O2 2CO2 + 4H2O
(ANS: 87%)
Percent Yield
![Page 48: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/48.jpg)
Moles
![Page 49: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/49.jpg)
MolesIn this experiment, magnesium chloride was prepared and its empirical formula was compared to the accepted formula of MgCl2. To prepare magnesium chloride, 0.40 grams of magnesium powder was combined with 10 mL of 0.10 M HCl. The mixture was allowed to react, and heated to dryness. The mass of the resulting crystals was used to calculate the empirical formula. The average calculated formula of MgCl1.8 had a 10% error and a range was 0.40 chlorine atoms. This procedure was not effective because while it was accurate, it was not precise.
![Page 50: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/50.jpg)
Moles
8a) SO3 + H2O H2SO4
b) B2S3 + 6H2O 2H3BO3 + 3H2S
c) 4PH3 + 8O2 6H2O + P4O10
d) 2Hg(NO3)2 2HgO + 4NO2 + O2
e) Cu + 2H2SO4 CuSO4 + SO2 + 2H2O
![Page 51: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/51.jpg)
Moles
12.a) 6 1 2 14. a) 1 1 1
b) 1 3 2 b) 1 6 2 3
c) 2 2 1 4 c) 1 2 2 1
d) 1 6 3 2 d) 2 2 4 1
e) 3 2 1 6 e) 1 2 1 1 2
f) 2 1 1 2
g) 4 9 4 10 2
![Page 52: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/52.jpg)
Moles18.a) 4Al + 3O2 2Al2O3
b) Cu(OH)2 CuO + H2O
c) C7H16 + 11O2 7CO2 + 8H2O
d) 2C5H12O + 15O2 10CO2 + 12H2O
20. 2 9 6 6
1 1 2
1 6 5 3
1 3 2
1 1 2
22.a) 44.0 g/mol b) 122.0 g/mol
c) 58.3 g/mol d) 60.0 g/mol e) 130.0 amu
![Page 53: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/53.jpg)
Moles24. 26.0 g/mole 92.3% C
176.0 g/mole 4.5% H
132.1 g/mole 6.1% H
300.1 g/mole 65.01% Pt
272.0 g/mole 11.8% O
305.0 g/mole 70.8 % C
![Page 54: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/54.jpg)
Moles
46 a)K3PO4 b) Na2SiF6c) C12H12N2O3
48 a) H2C2O4 b) C4H8O2
50 a) C13H18O2 b) C5H14N2 c) C9H13O3N
![Page 55: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/55.jpg)
Moles
58.a) 0.800 mol CO2 b) 14.7 g C6H12O6
c) 7.16 g CO2
60.a) 0.939 mol Fe2O3 b) 78.9 g CO
c) 105 g Fe d) 229 g= 229 g
![Page 56: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/56.jpg)
Moles48.a) H2C2O4 b) C4H8O2
50. a) C13H8O2 b)C5H14N2
c) C9H13O3N
58.a) 0.800 mol CO2 b) 14.7 g C6H12O6
c) 7.18 g CO2
60.a) Fe2O3 + 3CO 2Fe + 3CO2
b) 78.9 g CO2
c) 124 g CO2
d) 229 g = 229 g
![Page 57: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/57.jpg)
Moles62.a) CaH2 + 2H2O Ca(OH)2 + 2H2
b) 88.75 g CaH2
64. a) 15.6 mol O2 b) 35.0 g O2 c) 9175.1 g
72.0.167 mol Al2(SO4)3 form
0.333 mol Al(OH)3 react
0.167 mol AL(OH)3 remain
74.a) O2 is limiting reactant
b) 1.86 g H2O produced
c) 0.329 g NH3 remain
d) 4.25 g = 4.25 g
![Page 58: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/58.jpg)
Moles76. 5.24 g H2SO4 6.99 g PbSO4
2.77 g HC2H3O2
78. C2H6 + Cl2 C2H5Cl + HCl
232 g C2H5Cl (theoretical yield)
88.8% yield
80. Actual yield of Na2S = 1.80 g (1.95 g is the theoretical yield)
![Page 59: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/59.jpg)
Moles
The atmosphere of Jupiter is composed almost entirely of hydrogen (H2) and helium (He). If the average molar mass of Jupiter’s atmosphere is 2.254 g/mole, calculate the percent composition.
![Page 60: Like a recipe: Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts](https://reader030.vdocument.in/reader030/viewer/2022033019/568154bd550346895dc2c53c/html5/thumbnails/60.jpg)
Moles