Question

1. A student is asked to standardize a solution of
**sodium hydroxide**. He weighs out
**0.939** g potassium hydrogen phthalate
(KHC_{8}H_{4}O_{4}, treat this as a
monoprotic acid).

It requires **27.5** mL of **sodium
hydroxide** to reach the endpoint.

**A.** What is the molarity of the **sodium
hydroxide** solution? ______M

This **sodium hydroxide** solution is then used to
titrate an unknown solution of **hydrobromic
acid**.

**B.** If **14.7** mL of the
**sodium hydroxide** solution is required to
neutralize **23.4** mL of**hydrobromic
acid**, what is the molarity of the **hydrobromic
acid** solution? _____M

2. What volume of a **0.242** M **nitric
acid** solution is required to neutralize
**26.4** mL of a **0.194** M
**calcium hydroxide** solution?

_______mL **nitric acid**

**3.** What volume of a **0.159** M
**potassium hydroxide** solution is required to
neutralize **16.2** mL of a **0.329** M
**hydroiodic acid** solution?

**_______mL** potassium hydroxide

Answer #1

A student is asked to standardize a solution of calcium
hydroxide. He weighs out 0.988 g potassium hydrogen phthalate
(KHC8H4O4, treat this as a monoprotic acid). It requires 18.7 mL of
calcium hydroxide to reach the endpoint.
A. What is the molarity of the calcium hydroxide solution? This
calcium hydroxide solution is then used to titrate an unknown
solution of hydroiodic acid.
B. If 12.7 mL of the calcium hydroxide solution is required to
neutralize 14.9 mL of hydroiodic acid,...

A student is asked to standardize a solution of calcium
hydroxide. He weighs out 0.925 g potassium hydrogen phthalate
(KHC8H4O4, treat this as a monoprotic acid). It requires 28.3 mL of
calcium hydroxide to reach the endpoint.
A. What is the molarity of the calcium hydroxide solution? This
calcium hydroxide solution is then used to titrate an unknown
solution of hydroiodic acid.
B. If 13.3 mL of the calcium hydroxide solution is required to
neutralize 29.9 mL of hydroiodic acid,...

A student is asked to standardize a solution of calcium
hydroxide. He weighs out 0.921g potassium
hydrogen phthalate (KHC8H4O4,
treat this as a monoprotic acid).
It requires 17.3 mL of calcium
hydroxide to reach the endpoint.
A. What is the molarity of thecalcium
hydroxide solution?
M=?
his calcium hydroxidesolution is then used to
titrate an unknown solution ofhydrobromic
acid.
B. If 19.5 mL of the
calcium hydroxide solution is required to
neutralize 14.2 mL ofhydrobromic
acid, what is the molarity...

A student is asked to standardize a solution of
potassium hydroxide. He weighs out
0.950 g potassium hydrogen phthalate
(KHC8H4O4, treat this as a
monoprotic acid).
It requires 31.8 mL of potassium
hydroxide to reach the endpoint.
A. What is the molarity of the potassium
hydroxide solution? M
This potassium hydroxide solution is then used to
titrate an unknown solution of perchloric
acid.
B. If 16.7 mL of the
potassium hydroxide solution is required to
neutralize 27.5 mL of perchloric
acid,...

A student is asked to standardize a solution of calcium
hydroxide. He weighs out 0.905 g potassium hydrogen phthalate
(KHC8H4O4, treat this as a monoprotic acid). It requires 31.0 mL of
calcium hydroxide to reach the endpoint.
A. What is the molarity of the calcium hydroxide solution?
This calcium hydroxide solution is then used to titrate an
unknown solution of hydrochloric acid.
B. If 25.0 mL of the calcium hydroxide solution is required to
neutralize 19.3 mL of hydrochloric acid,...

A student is asked to standardize a solution of barium
hydroxide. He weighs out 0.925 g potassium hydrogen phthalate
(KHC8H4O4, treat this as a monoprotic acid). It requires 28.5 mL of
barium hydroxide to reach the endpoint.
A. What is the molarity of the barium hydroxide solution? This
barium hydroxide solution is then used to titrate an unknown
solution of perchloric acid.
B. If 26.0 mL of the barium hydroxide solution is required to
neutralize 26.9 mL of perchloric acid,...

You are going to standardize your sodium hydroxide by titrating
with potassium hydrogen phthalate. As an example, you dissolve
0.3365 g of potassium hydrogen phthalate, otherwise known as KHP
(KHC8H4O4) in water in a 250.0 mL Erlenmeyer flask and then add
phenolphthalein indicator. You then titrate with your sodium
hydroxide solution, which is in a buret, and you determine that the
equivalence point is at 12.44 mL of your sodium hydroxide solution.
Determine the molarity of your sodium hydroxide solution....

Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory to standardize strong base
solutions. It has the unwieldy formula of KHC8H4O4. This is often
written in shorthand notation as KHP
1. How many grams of KHP are needed to exactly neutralize 36.8
mL of a 0.337 M sodium hydroxide solution ?
2. What volume of a 0.381 M barium hydroxide solution is needed
to exactly neutralize 5.80 grams of KHP ?
3. If 4.19 grams of...

A. A 11.3 g sample of an aqueous solution of
hydrobromic acid contains an unknown amount of the
acid.
If 12.8 mL of 0.122 M
barium hydroxide are required to neutralize the
hydrobromic acid, what is the percent by mass
ofhydrobromic acid in the mixture?
= % by mass
B. A 10.4 g sample of an aqueous solution of
nitric acid contains an unknown amount of the
acid.
If 25.9 mL of 0.403 M
barium hydroxide are required to neutralize...

1. An aqueous solution of barium hydroxide is standardized by
titration with a 0.197 M solution of hydrobromic acid. If 10.4 mL
of base are required to neutralize 22.7 mL of the acid, what is the
molarity of the barium hydroxide solution? M barium hydroxide
b.An aqueous solution of hydrochloric acid is
standardized by titration with a 0.176 M solution
of barium hydroxide.
If 13.7 mL of base are required to neutralize
14.1 mL of the acid, what is the...

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