CHM101 / Graber
Homework Chapter 8
Spring 2016
Lecture:
Name (print) : _________________
Mon/Wed
Tue/Thur
(circle one)
Textbook homework problems are located in the exercises at the end of the chapters. The additional
homework problems are listed below. The answers for the textbook homework are posted on the
web site. The answers to the additional problems will be posted after the due date; after these
answers are posted (usually right after class) you can not receive credit for these questions. Answer
the extra questions on this sheet (write on the back and attach more paper if necessary). Staple
the additional questions and the textbook homework together before submitting the homework for
grading. Remember the 1/3 and 2/3 set-up for text homework problems.
Textbook Homework:
(5 points)
Chapter 8 Textbook Homework problems
42, 48a&b, 54, 56a&b, 60, 64, 92, 99
2, 3, 4, 6, 12, 18a&b, 20, 24a&b, 30, 32a&b, 34a&b,
Additional Problems: (3 pts)
1.
2.
a)
Iron (III) oxide reacts with carbon monoxide to make solid iron and carbon dioxide. How
many grams of iron is formed from 150.0 g iron (III) oxide if excess carbon monoxide is
present?
b)
If 87.9 g of iron is actually formed, what is the percent yield for the reaction?
Sodium phosphate reacts with barium nitrate to form barium phosphate and sodium nitrate.
a)
What general type of reaction is this?
If a solution containing 3.50 g of sodium phosphate is mixed with a solution containing 6.40 g
of barium nitrate
b)
How many grams of barium phosphate will form?
c)
Which reactant is limiting?
d)
How many grams of excess reactant will be left at the end of the reaction?