4-1: Stoichiometry
Chapter 4
University of Arkansas at Little Rock
Dr. Robert Belford & Rebekah Reinhart
Question 1
How many grams of CaCl
2
can be formed from 150.g HCl? Assume excess CaO. The unbalanced reaction is
(A)
114g
(B)
48.6g
(C)
228g
(D)
NOTA
Hint
Your response
Not answered yet
Question 2
How many grams of Fe(NO
3
)
3
can be formed from 75.9g Fe
2
S
3
? Assume excess HNO
3
. The unbalanced reaction is
(A)
331g
(B)
44.2g
(C)
177g
(D)
NOTA
Hint
Your response
Not answered yet
Question 3
How many grams of Na
2
S can be formed from 115g NaCl? Assume excess Fe
2
S
3
. The unbalanced reaction is
(A)
76.8g
(B)
19.8g
(C)
153.6g
(D)
NOTA
Hint
Your response
Not answered yet
Question 4
How many grams of Mg
3
N
2
can be formed from 75.0g Mg(OH)
2
? Assume excess NH
3
. The unbalanced reaction is
(A)
14.4g
(B)
43.3g
(C)
129g
(D)
NOTA
Hint
Your response
Not answered yet
Question 5
How many grams of Ca
3
(PO
4
)
2
can be formed from 175g Ca(OH)
2
? Assume excess H
3
PO
4
. The unbalanced reaction is
(A)
314g
(B)
244g
(C)
58.3g
(D)
NOTA
Hint
Your response
Not answered yet