Calculate the grams of phosphorus in the 100 ml sample: The acid-base titration procedure depends on...
Calculate the grams of phosphorus in the 100 ml sample:
The acid-base titration procedure depends on the ability of a certain stoichiometric amount of sodium hydroxide being capable of transforming the precipitate as follows:
X OH- + (NH4 )3[P(Mo12O40)]×12H2O -> 3 NH4+ + HP042- + 12 MoO42- + Y H2O
- Balance this equation to find numerical values for X and Y.
- 50.00 mL of 0.1000 M sodium hydroxide is added to the sample, enough to have enough NaOH to react plus some excess. Titration of the excess NaOH was carried out with standard HCl and was executed to the point where the color of phenolphthalein just disappeared. After adding the NaOH, it required 9.06 mL of 0.1000 M HC1 to reach the endpoint.
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Calculate the grams of phosphorus in the 100 ml sample:
The acid-base titration procedure depends on...
A 25.00 mL sample contains 0.562 grams of NaHCO3 (sodium bicarbonate a.k.a. baking soda). The sample...
A 25.00 mL sample contains 0.562 grams of NaHCO3 (sodium bicarbonate a.k.a. baking soda). The sample is used to standardize a NaOH (sodium hydroxide) solution. At the equivalence point (determined by pH meter and phenolphthalein) 40.95 mL of NaOH has been added. What is the concentration of the NaOH solution? Report the solutions to 3 decimal places. Hint: NaHCO3 and NaOH react in a 1:1 stoichiometric ratio.
Calculate the grams of phosphorus in a 100 mL sample. It requires 21.16 mL of 0.01000...
Calculate the grams of phosphorus in a 100 mL sample. It requires 21.16 mL of 0.01000 M potassium permanganate to reach the endpoint. A sample from a clean vat provided a blank. The blank determination required 3.55 mL.
6. Titration of a 50.00 mL solution of an unknown diprotic acid required 35.95 mL of...
6. Titration of a 50.00 mL solution of an unknown diprotic acid required 35.95 mL of 0.1367 M sodium hydroxide to reach the second equivalence point. What was the initial concentration of the unknown acid . A 0.8752 g sample of unknown containing potassium hydrogen phthalate (KHP) required 28.23 mL of a 0.1037 M NaOH for neutralizatjon. What is the mass percentage of KHP in the sample?
1) Calculate the pH in the titration of 50.00 mL of 0.060 M acetic acid (CH3COOH)...
1) Calculate the pH in the titration of 50.00 mL of 0.060 M acetic acid (CH3COOH) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for acetic acid = 1.8 x 10-5 A) 0 mL pH = B) 10 ml pH =
To determine the concentration of a solution of sulfuric acid, a 125.0-mL sample is placed in...
To determine the concentration of a solution of sulfuric acid, a 125.0-mL sample is placed in a flask and titrated with a 0.1433 M solution of cesium hydroxide. A volume of 20.29 mL is required to reach the phenolphthalein endpoint. Calculate the concentration of sulfuric acid in the original sample. A student has 530.0 mL of a 0.1474 M aqueous solution of MnSO4 to use in an experiment. He accidentally leaves the container uncovered and comes back the next week...
ELIMINARY EXERCISES: Experiment 16 Acid-Base Titrations- Define the following terms associated with titrations: a. standard solutions...
ELIMINARY EXERCISES: Experiment 16 Acid-Base Titrations- Define the following terms associated with titrations: a. standard solutions are base Soluchon When the molanty is alrea known. b. ondpoint is the pant at which color change occurs. C. indicator quie. Watersplutte dues that have one color in basic. 2. Write the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrochloric acid. Formula equation: Net Ionic equation: 3. What is the molarity of a solution prepared...
i need all answers Data Table 1: Titration of Vinegar with Sodium Hydroxide Vinegar Sample 1...
i
need all answers
Data Table 1: Titration of Vinegar with Sodium Hydroxide Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar (6) Volume of Vinegar (ml) Density - 1.005 g/ml Initial NaOH volume in syringe (ml) Final NaOH volume in syringe (ml) Volume of NaOH delivered (mL) Volume of NaOH delivered (L) Molarity of NaOH Moles of NaOH delivered Reaction of NaOH with Acetic Acid Moles of Acetic Acid in vinegar sample Molar mass of Acetic...
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...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Problem 1 - Strontium Hydroxide Acid/Base Question -/1 points A 8.51 mL sample of nitric acid...
Problem 1 - Strontium Hydroxide Acid/Base Question -/1 points A 8.51 mL sample of nitric acid required 13.25 mL of 0.105 M strontium hydroxide for titration. Calculate the molarity of the acid solution. (Hint: It's stoichiometry, you need the balanced equation) Concentration of Nitric Acid M Evaluate Problem 3 - H2Z Molecular Weight -/1 points A solution was made by adding water to 0.22 g of H2Z until the volume totaled 25.00 mL. Subsequent titration required 40.50 mL of 0.11...
A 25.00 mL sample contains 0.562 grams of NaHCO3 (sodium bicarbonate a.k.a. baking soda). The sample is used to standardize a NaOH (sodium hydroxide) solution. At the equivalence point (determined by pH meter and phenolphthalein) 40.95 mL of NaOH has been added. What is the concentration of the NaOH solution? Report the solutions to 3 decimal places. Hint: NaHCO3 and NaOH react in a 1:1 stoichiometric ratio.
Calculate the grams of phosphorus in a 100 mL sample. It requires 21.16 mL of 0.01000 M potassium permanganate to reach the endpoint. A sample from a clean vat provided a blank. The blank determination required 3.55 mL.
6. Titration of a 50.00 mL solution of an unknown diprotic acid required 35.95 mL of 0.1367 M sodium hydroxide to reach the second equivalence point. What was the initial concentration of the unknown acid . A 0.8752 g sample of unknown containing potassium hydrogen phthalate (KHP) required 28.23 mL of a 0.1037 M NaOH for neutralizatjon. What is the mass percentage of KHP in the sample?
1) Calculate the pH in the titration of 50.00 mL of 0.060 M acetic acid (CH3COOH) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for acetic acid = 1.8 x 10-5 A) 0 mL pH = B) 10 ml pH =
ELIMINARY EXERCISES: Experiment 16 Acid-Base Titrations- Define the following terms associated with titrations: a. standard solutions are base Soluchon When the molanty is alrea known. b. ondpoint is the pant at which color change occurs. C. indicator quie. Watersplutte dues that have one color in basic. 2. Write the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrochloric acid. Formula equation: Net Ionic equation: 3. What is the molarity of a solution prepared...
i
need all answers
Data Table 1: Titration of Vinegar with Sodium Hydroxide Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar (6) Volume of Vinegar (ml) Density - 1.005 g/ml Initial NaOH volume in syringe (ml) Final NaOH volume in syringe (ml) Volume of NaOH delivered (mL) Volume of NaOH delivered (L) Molarity of NaOH Moles of NaOH delivered Reaction of NaOH with Acetic Acid Moles of Acetic Acid in vinegar sample Molar mass of Acetic...
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...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Problem 1 - Strontium Hydroxide Acid/Base Question -/1 points A 8.51 mL sample of nitric acid required 13.25 mL of 0.105 M strontium hydroxide for titration. Calculate the molarity of the acid solution. (Hint: It's stoichiometry, you need the balanced equation) Concentration of Nitric Acid M Evaluate Problem 3 - H2Z Molecular Weight -/1 points A solution was made by adding water to 0.22 g of H2Z until the volume totaled 25.00 mL. Subsequent titration required 40.50 mL of 0.11...
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