Homework Answers
1g of KHP = 1/204.4 mol of KHP
= 0.00489 mol of KHP
as 1 mol of KHP neutralize 1 mol of KOH
then 0.00489 mol of KHP neutralize 0.00489 mol of KOH
0.00489 mol of KOH present in 43.3 mL of KOH
the concentration of that solution ( 0.00489/ 43.3) * 1000 mol/L
0.1129 mol/ L
=0.1129 (M)
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4) Potassium hydrogen phthalate (KHP) is the primary standard for evaluating the concentration of potassium hydroxi...
4) Potassium hydrogen phthalate (KHP) is the primary standard for evaluating the concentration of potassium hydroxide...
4) Potassium hydrogen phthalate (KHP) is the primary standard for evaluating the concentration of potassium hydroxide (KOH) solutions in terms of moles per Liter. In the course of a typical titration, one mole of KHP neutralizes one mole of KOH. 1.000 grams of KHP (molar mass = 204.2 grams per mole) consumed 43.3 mL of a given KOH (potassium hydroxide) solution. What is the molarity of the KOH solution? (5 points)
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for...
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for a titration. She later discovers that the KHP was contaminated with sugar. To determine the amount of KHP in the mixture, she takes 5.942 g of the mixture and make a 100.0 mL solution. The student then titrates 10.00 mL of this solution with a 0.1491 M sodium hydroxide solution. She finds that 13.12 mL of the NaOH solution is needed to reach the...
a student dissolves 0.461g of potassium hydrogen phthalate (KHP) solution with a solution hydroxide. She records...
a student dissolves 0.461g of potassium hydrogen phthalate (KHP) solution with a solution hydroxide. She records her initial burst reading as 4.72 mL and her final burst reading as 14.26mL. what volume sodium hydroxide did she use? how many moles of KHP were present in the solution? if one mole of khp reacts with one mole of hydroxide, how many moles of hydroxide were added? what was the molarity of the sodium hydroxide solution?
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798 g of KHP were dissolved in 100 ml of water to prepare the standard KHP solution. a) What is the molar mass of KHP? (you need to look up its formula and calculate its molar mass from the periodic table). b) If 45.22 ml of sodium hydroxide were required to neutralize the KHP solution, what is the molarity of NaOH?
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g...
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 35.31 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution?
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g...
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 36.21 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution?
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary...
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 31.1 mL of a barium hydroxide solution are needed to neutralize 2.41 grams of KHP, what is the molarity of the barium hydroxide solution?
6. Potassium hydrogen phthalate (KHP, KHC8H4O4) is also a good primary standard. 20 mL of NaOH...
6. Potassium hydrogen phthalate (KHP, KHC8H4O4) is also a good primary standard. 20 mL of NaOH was titrated with 0.600 M KHC8H4O4 solution. The data was graphed and the equivalence point was found when 15.5 mL of the standard 0.600 M KHP solution was added. The reaction equation is: a. What is the molar ratio of NaOH:KHC8H4O4? b. What is the molarity of the NaOH solution?
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary...
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC,H,O. This is often written in shorthand notation as KHP. If 21.7 mL of a barium hydroxide solution are needed to neutralize 0.993 grams of KHP, what is the molarity of the barium hydroxide solution? M
solution of the primary standard potassium hydrogen phthalate, KHC3H404, was prepared by dissolving 0.4877 g of potassi...
solution of the primary standard potassium hydrogen phthalate, KHC3H404, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 22.84 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution? Number
4) Potassium hydrogen phthalate (KHP) is the primary standard for evaluating the concentration of potassium hydroxide (KOH) solutions in terms of moles per Liter. In the course of a typical titration, one mole of KHP neutralizes one mole of KOH. 1.000 grams of KHP (molar mass = 204.2 grams per mole) consumed 43.3 mL of a given KOH (potassium hydroxide) solution. What is the molarity of the KOH solution? (5 points)
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for a titration. She later discovers that the KHP was contaminated with sugar. To determine the amount of KHP in the mixture, she takes 5.942 g of the mixture and make a 100.0 mL solution. The student then titrates 10.00 mL of this solution with a 0.1491 M sodium hydroxide solution. She finds that 13.12 mL of the NaOH solution is needed to reach the...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798 g of KHP were dissolved in 100 ml of water to prepare the standard KHP solution. a) What is the molar mass of KHP? (you need to look up its formula and calculate its molar mass from the periodic table). b) If 45.22 ml of sodium hydroxide were required to neutralize the KHP solution, what is the molarity of NaOH?
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC,H,O. This is often written in shorthand notation as KHP. If 21.7 mL of a barium hydroxide solution are needed to neutralize 0.993 grams of KHP, what is the molarity of the barium hydroxide solution? M
solution of the primary standard potassium hydrogen phthalate, KHC3H404, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 22.84 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution? Number
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