A student accidentally used phthalic acid, which has 2 ioniozable protons instead of KHP as the...
A student accidentally used phthalic acid, which has 2 ioniozable protons instead of KHP as the primary standard. What effect would this have on the calculation for determining the molarity of the NaOH solution?
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A student accidentally used phthalic acid, which has 2
ioniozable protons instead of KHP as the...
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...
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 37.5 mL of a sodium hydroxide solution are needed to neutralize 2.14 grams of KHP, what is the molarity of the sodium hydroxide solution? __________M Oxalic acid dihydrate is a solid, diprotic acid that can be used in the laboratory as a primary standard. Its formula...
grams of KHP 0.6413 mL NaOH needed to titrate KhP to endpoint 38.80 Grams of unknown...
grams of KHP 0.6413
mL NaOH needed to titrate KhP to endpoint 38.80
Grams of unknown acid: 1.5106
mL NaOH needed to titrate unknown acid to endpoint
33.55
need to know molarity of NaOH solution and Molar mass of
unknown acid. Please help and show work!
CHEM 265 LAB EXPERIMENT NUMBER 4 DETERMINATION OF THE MW OF AN UNKNOWN ACID This experiment utilizes a titration to determine the molecular weight of an unknown acid. In this experiment, the endpoint of...
1) Instead of using zinc, a student accidentally used a 1 M solution of silver (Ag)....
1) Instead of using zinc, a student accidentally used a 1 M solution of silver (Ag). Based on the information in the table below, what would be the theoretical cell voltage, Eocell, when it is used in a galvanic cell with copper?
A. Standardization of Sodium Hydroxide (NaOH) Solution Mass of bottle + KHP Mass of bottle Mass...
A. Standardization of Sodium Hydroxide (NaOH) Solution Mass of bottle + KHP Mass of bottle Mass of KHP used Final buret reading Initial buret reading mL of NaOH used Molarity of NaOH Trial 1 1.3760 g 1.0369 g 0.2291 8 19.30 ml 4.90 mL 14.40 ml Trial 2 1.40458 1.0369 g 0.36768 35.60 mL 20.10 ml 15.50 ml Trial 3 1.39678 1.0369 g 0.3598 g 45.10 mL 30.10 ml 15.00 ml Average Molarity: Standard Deviation: Show your calculations for molarity...
4. Vinegar is a solution of acetic acid. Acetic acid has a 1:1 ratio when reacted...
4. Vinegar is a solution of acetic acid. Acetic acid has a 1:1 ratio when reacted with NaOH. a. Suppose that the molarity of acetic acid in vinegar is 0.5 M, how many grams of acetic acid are present in the 5 ml of vinegar solution used in the titration? (molar mass of acetic acid = 60 g/mol). b. If vinegar has a density of 1.01 g/mol. Calculate the % of acetic acid in vinegar by mass. 5. 50 ml...
Stimulus 2 A student sets up a titration for the standardization of NaOH using KHP (KHC3H404)....
Stimulus 2 A student sets up a titration for the standardization of NaOH using KHP (KHC3H404). The reaction proceeds as follows: NaOH(aq) + KHC9H404 (aq) --> KNaC9H404 (aq) + H20 (0 The student collects the following data: Initial Buret Reading NaOH 2.15 ml Final Buret Reading NaOH 20.83 mL What is the total volume of NaOH needed to neutralize the KHP? Answer in ml (don't type the unit) and with the correct number of significant figures Type your answer... 12...
A student gets a 3 mL sample of saturated KHP at 28.0°C. It takes 27.6 mL...
A student gets a 3 mL sample of saturated KHP at 28.0°C. It takes 27.6 mL of 0.107 M NaOH to titrate to the endpoint. How many moles of NaOH is this? How many moles of KHP were present in the sample? what is the molarity of the saturated KHP solution? What is the value of Ksp for this solution? (Assume syringe volume is good to 2 dp. Assume buret volume is good to 2 dp. Assume molarity of NaOH...
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP...
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, the molarity of the sodium hydroxide solution if it takes 31.21 mL of it to titrate the KHP? It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid solution. What is the molarity of the sulfuric acid?
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?
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...
grams of KHP 0.6413
mL NaOH needed to titrate KhP to endpoint 38.80
Grams of unknown acid: 1.5106
mL NaOH needed to titrate unknown acid to endpoint
33.55
need to know molarity of NaOH solution and Molar mass of
unknown acid. Please help and show work!
CHEM 265 LAB EXPERIMENT NUMBER 4 DETERMINATION OF THE MW OF AN UNKNOWN ACID This experiment utilizes a titration to determine the molecular weight of an unknown acid. In this experiment, the endpoint of...
A. Standardization of Sodium Hydroxide (NaOH) Solution Mass of bottle + KHP Mass of bottle Mass of KHP used Final buret reading Initial buret reading mL of NaOH used Molarity of NaOH Trial 1 1.3760 g 1.0369 g 0.2291 8 19.30 ml 4.90 mL 14.40 ml Trial 2 1.40458 1.0369 g 0.36768 35.60 mL 20.10 ml 15.50 ml Trial 3 1.39678 1.0369 g 0.3598 g 45.10 mL 30.10 ml 15.00 ml Average Molarity: Standard Deviation: Show your calculations for molarity...
4. Vinegar is a solution of acetic acid. Acetic acid has a 1:1 ratio when reacted with NaOH. a. Suppose that the molarity of acetic acid in vinegar is 0.5 M, how many grams of acetic acid are present in the 5 ml of vinegar solution used in the titration? (molar mass of acetic acid = 60 g/mol). b. If vinegar has a density of 1.01 g/mol. Calculate the % of acetic acid in vinegar by mass. 5. 50 ml...
Stimulus 2 A student sets up a titration for the standardization of NaOH using KHP (KHC3H404). The reaction proceeds as follows: NaOH(aq) + KHC9H404 (aq) --> KNaC9H404 (aq) + H20 (0 The student collects the following data: Initial Buret Reading NaOH 2.15 ml Final Buret Reading NaOH 20.83 mL What is the total volume of NaOH needed to neutralize the KHP? Answer in ml (don't type the unit) and with the correct number of significant figures Type your answer... 12...
A student gets a 3 mL sample of saturated KHP at 28.0°C. It takes 27.6 mL of 0.107 M NaOH to titrate to the endpoint. How many moles of NaOH is this? How many moles of KHP were present in the sample? what is the molarity of the saturated KHP solution? What is the value of Ksp for this solution? (Assume syringe volume is good to 2 dp. Assume buret volume is good to 2 dp. Assume molarity of NaOH...
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, the molarity of the sodium hydroxide solution if it takes 31.21 mL of it to titrate the KHP? It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid solution. What is the molarity of the sulfuric acid?
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