Question

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

Answer #1

Potassium hydrogen phthalate (KHP) is often used as a primary
standard in acid-base titration. If 20.95 mL of NaOH is required to
neutralize 0.472 g of KHP, what is the concentration of the
NaOH?

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...

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 acid phthalate,
KHC8H4O4, or KHP, is used in many
laboratories, including general chemistry laboratories, to
standardize solutions of base. KHP is one of only a few stable
solid acids that can be dried by warming and weighed. A 0.3574 g
sample of KHC8H4O4 reacts with
34.79 mL of a NaOH solution in a titration. What is the molar
concentration of the NaOH? Here is the equation given below.
KHC8H4O4(aq) +
NaOH(aq) →
KNaC8H4O4(aq) +
H2O(l)

Potassium hydrogen phthalate (KHP, molar mass = 204.22 g/mol) is
often used as a primary standard in acid-base titration. If 19.75
mL of NaOH is required to neutralize 0.397 g of KHP, what is the
concentration of the NaOH?

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?

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?

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....

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