During a titration, 55.0 mL of a 2.50 M solution of Ba(OH)2 is used to neutralize 112 mL of a HNO3 solution. Which of the following correctly solves for the molarity of the HNO3?
2 HNO3 + Ba(OH)2 --> 2 H2O + Ba(NO3)2
Answers
Answer:
Explanation:
How many grams of Ca(OH)2 are needed to
neutralize 25.0mL of 0.100 M HNO3?
12oct2017_titration.notebook October 12, 2017
How many grams of NaOH are needed to
neutralize 20.0mL of 0.150M H2SO4 solution?
12oct2017_titration.notebook October 12, 2017
One commercial method used to peel potatoes
is to soak them in a NaOH solution for a short
time, then remove them and spray off the peel.
The NaOH concentration is normally 3 to 6 M,
and the solution must be analyzed periodically.
In one such analysis, 45.7 mL of 0.500 M H2SO4
is required to neutralize 20.0 mL of NaOH
solution. What is the concentration of the
NaOH solution?
12oct2017_titration.notebook October 12, 2017
What is the molarity of an NaOH solution if 48.0
mL neutralizes 35.9 mL of 0.144M H2SO4
12oct2017_titration.notebook October 12, 2017
12oct2017_titration.notebook October 12, 2017
The quantity of Cl in a municipal water supply
is determined by titrating the sample with Ag+.
The precipitation reaction taking place during
the titration is:
The end point in this type of titration is marked
by a change in color of a special type of
indicator.
a. How many grams of chloride ions are in a
sample of the water if 20.2 mL of 0.100M Ag+ is
needed to react with all the chloride in the
sample?
b. If the sample has a mass of 10.0g, what
percent Cl does it contain?
12oct2017_titration.notebook October 12, 2017
A sample of an iron ore is dissolved in acid,
and the iron is converted to Fe2+
. The
sample is then titrated with 47.20 mL of
0.02240 M MnO4 solution. The redox
reaction that occurs during the titration is:
MnO4(aq)+5Fe2+
(aq)+8H+
(aq)>Mn2+
(aq)+5Fe3+
(aq) + 4H2O(l)
a. How many moles of MnO4 were added to
the solution?
b. How many moles of Fe2+
were in the
sample?
c. How many grams of iron were in the
sample?
d. If the sample had a mass of 0.8890g, what
is the percentage of iron in the sample?