A buret is usually washed before beginning a titration. If 6.0 M sodium hydroxide will be...
A buret is usually washed before beginning a titration. If 6.0 M sodium hydroxide will be added to the buret, why is it important to perform a final rinse with 6.0 M sodium hydroxide before filling up the buret with same chemical?
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A buret is usually washed before beginning a titration. If 6.0 M
sodium hydroxide will be...
explain why it is important to rinse the buret with KMnO4 solution twice before titration? And...
explain why it is important to rinse the buret with KMnO4 solution twice before titration? And why you should rinse buret with water thoroughly before you leave?
Question 7 2 pts Consider the following sodium hydroxide, oxalic acid titration data. Remember sodium hydroxide...
Question 7 2 pts Consider the following sodium hydroxide, oxalic acid titration data. Remember sodium hydroxide is in the buret mass of oxalic acid - 1.301 g initial buret reading = 2.16 mL final buret reading = 39.13 mL Calculate the molarity of the sodium hydroxide. .761 M 0.705 M 733 M 782M
Below are hypothetical data from a titration experiment. Part A focuses on determining the molarity of...
Below are hypothetical data from a titration experiment. Part A focuses on determining the molarity of a sodium hydroxide solution. Part B uses the sodium hydroxide solution to determine the molarity, and ultimately the mass percent, of acetic acid in an unknown vinegar sample. Vinegar is an aqueous solution containing 4 to 6% by mass acetic acid. Please use the data provided below to perform the calculations and answer the questions in this assignment. Part A: A 0.883 M standard...
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane?...
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane? What happens during this time? 2. Why does phenol react with sodium hydroxide? Why does ethanol not react to the extent that phenol does with sodium hydroxide? 3. What is the better nucleophile, sodium phenoxide or phenol? Why? 4. Why do you need to rinse your product with ice water instead of room temperature water?
2. In a titration experiment, 0.375 M NaOH is added from a buret to 31.2 mL...
2. In a titration experiment, 0.375 M NaOH is added from a buret to 31.2 mL of a 0.482 M H3PO4 solution and reacts according to the equation: 3 NaOH(aq) + HPO4 (aq)...........-> NasPO4 (aq) + 3 H20 (aq) How many milliliters of sodium hydroxide solution have been added at the equivalence point (end point)?
Preparation of Sodium Hydroxide Titrant: Prepare 500 mL of a 0.1 M sodium hydroxide solution by...
Preparation of Sodium Hydroxide Titrant: Prepare 500 mL of a 0.1 M sodium hydroxide solution by dilution of a 1 M sodium hydroxide stock reagent or from solid NaOH. This dilution need only be performed to 5% accuracy, that is, using a graduated cylinder and an Erlenmeyer flask. Store the diluted solution in a polyethylene bottle. Standardize the diluted solution against dry, solid KHP (potassium hydrogen phthalate) using phenolphthalein as an indicator and label the bottle with the concentration of...
Can I get some help filling the rest out? A. PREPARATION OF SODIUM HYDROXIDE SOLUTION Mass...
Can I get some help filling the rest out?
A. PREPARATION OF SODIUM HYDROXIDE SOLUTION Mass of sodium hydroxide desired (show work) Mass of sodium hydroxide used B. STANDARDIZATION OF SODIUM HYDROXIDE SOLUTION (Show Wa Balanced chemical equation Trial 3 Trial 1 Trial 2 "เราจ Mass of oxalic acid 2.1 Initial burette reading to e, 5 29.9 Final burette reading 75 1 Volume NaOH added 28.4 moles of oxalic acid moles of NaOH added Molarity of NaOH Average Molarity 2.1...
For the titration of 25.0 mL of 0.20 M hydrofluoric acid with 0.20 M sodium hydroxide,...
For the titration of 25.0 mL of 0.20 M hydrofluoric acid with 0.20 M sodium hydroxide, determine the volume of base added when pH is 3.15? (Ans: 12.5 ml) can you show the worked out solution?
In the titration of acetic acid (CH3COOH) and sodium hydroxide (NaOH), what are the major sepcies...
In the titration of acetic acid (CH3COOH) and sodium hydroxide (NaOH), what are the major sepcies present at the following points? a) Before any NaOH is added (at the start of the titration). b) In the buffer region. Are there any spectator ions? c) At equivalence point. What is equivalent at this point? What has been used up? Are there any spectator ions? d) Beyond equivalence point. What has been added since the equivalence point? Has anything reacted further since...
Determine the pH during the titration of 14.7 mL of 0.118 M hydroiodic acid by 8.94×10-2 M sodium hydroxide at the follo...
Determine the pH during the titration of 14.7 mL of 0.118 M hydroiodic acid by 8.94×10-2 M sodium hydroxide at the following points: (1) Before the addition of any sodium hydroxide (2) After the addition of 9.70 mL of sodium hydroxide (3) At the equivalence point (4) After adding 24.6 mL of sodium hydroxide
Question 7 2 pts Consider the following sodium hydroxide, oxalic acid titration data. Remember sodium hydroxide is in the buret mass of oxalic acid - 1.301 g initial buret reading = 2.16 mL final buret reading = 39.13 mL Calculate the molarity of the sodium hydroxide. .761 M 0.705 M 733 M 782M
1. Why is it important to mix the phenol with sodium hydroxide before adding the chlorobutane? What happens during this time? 2. Why does phenol react with sodium hydroxide? Why does ethanol not react to the extent that phenol does with sodium hydroxide? 3. What is the better nucleophile, sodium phenoxide or phenol? Why? 4. Why do you need to rinse your product with ice water instead of room temperature water?
2. In a titration experiment, 0.375 M NaOH is added from a buret to 31.2 mL of a 0.482 M H3PO4 solution and reacts according to the equation: 3 NaOH(aq) + HPO4 (aq)...........-> NasPO4 (aq) + 3 H20 (aq) How many milliliters of sodium hydroxide solution have been added at the equivalence point (end point)?
Can I get some help filling the rest out?
A. PREPARATION OF SODIUM HYDROXIDE SOLUTION Mass of sodium hydroxide desired (show work) Mass of sodium hydroxide used B. STANDARDIZATION OF SODIUM HYDROXIDE SOLUTION (Show Wa Balanced chemical equation Trial 3 Trial 1 Trial 2 "เราจ Mass of oxalic acid 2.1 Initial burette reading to e, 5 29.9 Final burette reading 75 1 Volume NaOH added 28.4 moles of oxalic acid moles of NaOH added Molarity of NaOH Average Molarity 2.1...
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