Question

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 KHP are needed to exactly neutralize 36.3 mL of a potassium hydroxide solution, what is the concentration of the base solution ?

Answer #1

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. How many grams of KHP are
needed to exactly neutralize 32.0 mL of a 0.332 M calcium hydroxide
solution ?
What volume of a 0.232 M calcium hydroxide solution is needed to
exactly neutralize 3.54 grams of KHP ?

Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory as a primary standard. It has the
unwieldy formula of KHC8H4O4. This is often written in shorthand
notation as KHP. If 30.7 mL of a barium hydroxide solution are
needed to neutralize 1.18 grams of KHP, what is the molarity of the
barium hydroxide solution?

Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory as a primary standard. It has the
unwieldy formula of KHC8H4O4. This is often written in shorthand
notation as KHP. If 32.5 mL of a potassium hydroxide solution are
needed to neutralize 3.74 grams of KHP, what is the molarity of the
potassium hydroxide solution? __M

Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory as a primary standard. It has the
unwieldy formula of KHC8H4O4. This is often written in shorthand
notation as KHP. If 29.31 mL of a potassium hydroxide solution are
needed to neutralize 1.800 grams of KHP, what is the concentration
(mol/L) of the potassium hydroxide solution?

Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory as a primary standard. It has the
unwieldy formula of
KHC8H4O4. This is
often written in shorthand notation as KHP.
If 22.86 mL of a potassium
hydroxide solution are needed to neutralize
2.355 grams of KHP, what is the concentration
(mol/L) of the potassium hydroxide solution?

KHP, potassium hydrogen phthalate (KHC8H4O4), is often used to
standardize basic solution used in titration. If a 0.855g sample of
KHP requires 31.44 mL of a KOH solution to fully neutralize it,
what is the [KOH] in the solution? The reaction is KHC8H4O4 -->
K2C8H4O+H2O

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....

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 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,...

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...

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