4-4: Stoichiometry
Chapter 4
Dr. Robert Belford & Rebekah Reinhart
Question 1
How many grams of O
2
is present upon completion of a reaction with 67.0 grams of C and 194 grams of O
2
? The unbalanced equation is
(A)
0.00g
(B)
16.0g
(C)
111g
(D)
NOTA
Hint
Your response
Not answered yet
Question 2
How much carbon is left over from the reaction of 67.0 grams of C and 194 grams of O
2
? The unbalanced equation is
(A)
0.00g
(B)
13.0g
(C)
27.0g
(D)
NOTA
Hint
Your response
Not answered yet
Question 3
If 212g CO
2
is produced from the reaction of 67.0 grams of C and 194 grams of O
2
, what is the percent yield? The unbalanced equation is
(A)
86.2%
(B)
43.1%
(C)
64.2%
(D)
NOTA
Hint
Your response
Not answered yet
Question 4
If the percent yield of a reaction of 67.0 grams of C and 194 grams of O
2
was 92.1%, how much CO
2
is produced. The unbalanced equation is
(A)
212g
(B)
246g
(C)
227g
(D)
NOTA
Hint
Your response
Not answered yet
Question 5
How many grams of oxygen are present upon completion of the reaction of 120. grams of Al and 120. grams of O
2
? The unbalanced equation is
(A)
120.g
(B)
107g
(C)
13.0g
(D)
NOTA
Hint
Your response
Not answered yet
Question 6
How much Al
2
O
3
is formed from the reaction of 120. grams of Al and 120 grams of oxygen if the percent yield is 91.6%. The unbalanced equation is
(A)
193g
(B)
207g
(C)
226g
(D)
NOTA
Hint
Your response
Not answered yet
