Name: ______
Chapter 10 Study Guide
Molar Mass
1. What is the molar mass of sodium chromate?
2. What is the molar mass of sulfuric acid?
3. What is the molar mass of lead (IV) chloride?
4. What is the molar mass of acetic acid?
Conversions
5. Convert 3.98 moles of iron (II) chloride to grams.
6. Convert 6.39 x 1025 molecules of copper (II) phosphate to moles.
7. Convert 378.7 liters of oxygen to moles.
8. Convert 78.33 grams of hydrocyanic acid to moles.
Empirical Formula
9. What is empirical formula for C3H9N3?
10. What is the empirical formula for P4O10?
11. What is the empirical formula for C12H22O11?
Problems
12. What is the empirical formula of a compound that contains 62.1%C, 13.8%H, and 24.1%N?
13. Find the molecular formula of ethylene glycol, which is used as antifreeze. The molar mass is 62g/mol and the empirical formula is CH3O.
14. Calculate the percent composition of the compound that forms when 222.6g N combines completely with 77.4g O.
15. Calculate the percent composition of ammonium nitrate.
16. What is the molecular formula of a compound with a molar mass of 150g/mol and an empirical formula of CH2O?
17. What is the empirical formula for a compound made of 50.7%C, 4.2%H, and 45.1%O?
Chapter 11 Study Guide
Word Equations
Write the chemical equation for the following reactions:
1. Aqueous silver (I) nitrate and copper metal react to form silver metal and aqueous copper (II) nitrate.
2. Heating solid magnesium carbonate produces solid magnesium oxide and carbon dioxide gas.
3. Write the word equation for the following reaction:
HCl(aq) + CaCO3(s) à CO2(g) + CaCl2(aq) + H2O(l)
4. Write the word equation for the following reaction:
2Ag(s) + S(s) à Ag2S(s)
Balancing Equations
5. Balance the following equation:
___C7H6O2 + ___O2 à ___CO2 + ___H2O
6. Balance the following equation:
___Na2O2 + ___H2O à ___NaOH + ___O2
Predicting Products
7. Predict the products and classify the type of the following reaction:
HCl + Ca à
8. Predict the products and classify the type of the following reaction:
C3H8 + O2 à
Ionic Equations
9. Write the net ionic equation for the following reaction:
Pb(NO3)2(aq) + NH4Cl(aq) à PbCl2(s) + NH4NO3(aq)
10. Write the complete ionic equation for the following reaction:
FeCl3(aq) + NaOH(aq) à Fe(OH)3(s) + NaCl(aq)
11. Write the net ionic equation for the following reaction:
Ba(NO3)2(aq) + Na2SO4(aq) à BaSO4(s) + NaNO3(aq)
12. Write the complete ionic equation for the following reaction:
Li3PO4(aq) + Zn(NO3)2(aq) à Zn3(PO4)2(s) + LiNO3(aq)
Prediction Precipitates
13. Predict if a precipitate will form in the following reaction:
Zn(NO3)2(aq) + SnCl2(aq) à
14. Predict if a precipitate will form in the following reaction:
KCl(aq) + AgNO3(aq) à
Chapter 12 Study Guide
**Do your work on another sheet of paper**
1. Given the following equation:
2 KClO3 à 2 KCl + 3 O2
How many moles of oxygen can be produced by letting 12.00 moles of potassium chlorate react?
2. Given the following equation:
2 K + Cl2 à 2 KCl
How many grams of potassium chloride is produced from 2.50 grams of potassium and excess chlorine.
3. Given the following equation:
Na2O + H2O à 2 NaOH
How many grams of sodium oxide are required to produce 1.60 x 1021 molecules of sodium hydroxide?
4. Given the following equation:
2 NaClO3 à 2 NaCl + 3 O2
How many grams of sodium chloride are produced when 80.0 liters of oxygen are produced?
5. Iron and carbon monoxide are produced in a blast furnace by the reaction of iron(III) oxide and carbon. If 25.0 grams of pure Fe2O3 is used, how many atoms of iron can be produced?
6. Glucose (C6H12O6) goes through combustion. If 120 grams of glucose are used, then how many liters of water are produced?
7. Given the following equation:
Cu + 2 AgNO3 à Cu(NO3)2 + 2 Ag
If 72 grams of copper and 187 grams of silver (I) nitrate react, then how many grams of copper (II) nitrate will be produced? Identify the limiting and excess reagents.
8. Given the following equation:
8 Fe + S8 à 8 FeS
If 150 grams of iron react with 150 grams of sulfur, then how many grams of iron (II) sulfide are produced?
9. Given the following equation:
Na2CO3 + 2 HNO3 à 2 NaNO3 + H2O + CO2
If 30 grams of sodium carbonate react to form 45.5 grams of sodium nitrate, then what is the percent yield?
10. Given the following equation:
2Fe + 3O2 à Fe2O3
If 100 grams of iron react with 90 grams of oxygen and 130 grams of iron(III)oxide is produced, then what is the percent yield? Identify the limiting and excess reagents