Sem_2_Practice_Final_Exam

Sem_2_Practice_Final_Exam - Semester 2 Practice Final Exam...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Semester 2 Practice Final Exam 1. How many mol of O 2 is required to exactly react with 0.250 mol of C 3 H 8 ? C 3 H 8 + 5O 2 à   3CO 2 + 4H 2 O 2. How many grams of ammonia would be produced from complete reaction of 10.0 g of hydrogen gas? N 2 + 3H 2 à 2NH 3 3. One of the commercial methods for producing SO 2 , which is then used as an intermediate in the production of sulfuric acid is: 2ZnS( s ) + 3O 2 ( g ) à 2ZnO( s ) + 2SO 2 ( g ) In which of the following combinations is oxygen the limiting reactant? a. 4.0 mol ZnS and 7.0 mol O 2 b. 4.2 mol ZnS and 6.4 mol O 2 c. 0.15 mol ZnS and 0.20 mol O 2 d. 3.0 mol ZnS and 5.5 mol O 2 e. 0.50 mol ZnS and 0.80 mol O 2 4. 2 Ca 3 (PO 4 ) 2 ( s ) + 10 C( s ) + 6 SiO 2 ( s ) à 6CaSiO 3 ( l ) + 10CO( g ) + P 4 ( g ) If 2.60 mol Ca 3 (PO 4 ) 2 , 10.0 mol C, and 7.80 mol SiO 2 are combined to perform this reaction, which statement regarding the system is true? a. C is the limiting reactant. b. Ca 3 (PO 4 ) 2 and SiO 2 are both limiting reactants. c. C and SiO 2 are both limiting reactants. d. SiO 2 is the limiting reactant. e. Ca 3 (PO 4 ) 2 is the limiting reactant. 5. A quantity of 5.00 mol of sodium hydroxide is reacted with 3.00 mol of sulfuric acid. After the chemical reaction is complete, how many mol of the excess reactant is left unreacted? 2NaOH + H 2 SO 4 à Na 2 SO 4 + 2H 2 O 6. How many grams of which reactant are left over when 22.0 g of magnesium nitride and 12.0 g of water are combined? Mg 3 N 2 ( g ) + 6H 2 O( l ) à 3Mg(OH) 2 ( s ) + 2NH 3 ( g ) 7. An excess of sulfur dioxide was used to react with 0.0150 g of oxygen gas. A mass of 0.0251 g of sulfur trioxide was recovered. What is the percent yield of sulfur trioxide? 2SO 2 + O 2 à 2SO 3 8. An excess of sodium hydroxide was used to react with 650.0 g Br
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/30/2010 for the course BIOL 203 taught by Professor Hued during the Spring '10 term at Eastern Oregon.

Page1 / 3

Sem_2_Practice_Final_Exam - Semester 2 Practice Final Exam...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online