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Determine the identity of an unknown solid weak acid The...
Data i got: 1g of solid acid=0.51706 ml 50 ml of water used to dissolve 0.5...
Data i got:
1g of solid acid=0.51706 ml
50 ml of water used to dissolve
0.5 ml of indicator added to acid solution
8.52 ml of 1M NaOH titrated from burrete into acid
solution.
The virtual lab stockroom contains NaOH, water and an unknown solid weak acid. Perform experiments to identify the pka and molar mass of the bottle of unknown solid acid. You may enter your answer in the form below the Virtual Lab NOTE: You can submit your...
Determination of Ka and Identification of an Unknown Weak Acid Post-lab Question 1. Suppose that a student performi...
Determination of Ka and Identification of an Unknown Weak Acid Post-lab Question 1. Suppose that a student performing this experiment mistakenly calibrated the pH meter using pH 8 buffer instead of pH 7 buffer. As a result of this error, all of the student's pH readings were too low. a) Would this error have affected the calculated molar mass of the unknown acid? Briefly explain. b) Would this error have affected the experimentally determined pKa of the unknown acid? Briefly...
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the...
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the primary standard KHP (potassium hydrogen phthalate, KHC8H4O4) had a potassium iodide impurity of approximately one percent by mass. How would this have influenced the calculated molarity of your sodium hydroxide solution? Would your calculated value be too low, too high, or unchanged? Explain your answer. b. Sketch a typical titration curve for a monoprotic weak acid titrated with a strong base. Label the axes...
In this experiment, you will identify an unknown weak acid by titration with standardized base. This...
In this experiment, you will identify an unknown weak acid by titration with standardized base. This lab takes place in two parts, which you can do in either order: 1. Standardization of a sodium hydroxide solution to find its actual concentration (approximately 0.1 M) 2. Titration of the weak acid with the sodium hydroxide solution. You won't know if your acid is monoprotic (HA), diprotic (H2A), or triprotic (H3A). a.) Indicate how you would differentiate between the three different types...
Suppose you perform a titration of an unknown weak acid solution. You start with 4.00 mL...
Suppose you perform a titration of an unknown weak acid solution. You start with 4.00 mL of the weak acid and find that it takes 10.6 mL of 0.0500 M NaOH to reach the equivalence point. What is the concentration of the unknown weak acid solution? Enter your answer to three significant figures in units of M.
how do we determine the mass of acid/mole of sodium hydroxide of the unknown acid? i...
how do we determine the mass of acid/mole of sodium hydroxide of
the unknown acid?
i
am just looking for the formula to solve it
D. Determination of the mass of an unknown acid required to neutralize one mole of hydroxide ion. Obtain a clean, dry capped shell vial containing an unknown acid. Record your unknown's number and label the vial. Keep this vial in your locker until your graded lab report has been returned to you. 1. Note: 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...
Please here is my lab questions for titration of weak acid. The questions are very short....
Please here is my lab questions for titration of weak acid. The
questions are very short. You have to determine the answers by just
looking at the graph based on the data points. Please give me the
answers of all of them. I would really appreciate. Please calculate
the molar mass question #7 as well. It will be of great help to
me.
Mass of the unknown acid: 0.2grams
Concentration of NaOH = 0.0500M
Formuld Bal pH of weak acid...
In this experiment, you will titrate an unknown acid with a base. It will be important...
In this experiment, you will titrate an unknown acid with a base. It will be important for you to understand certain things about this titration in order to identify successfully your unknown. For all of the following questions, assume you are titrating an unknown monoprotic acid, HA, with NaOH solution. 0.146 g of HA is added to a beaker and made into a solution with ~100 mL of distilled water. As the titration proceeds, you keep track of the pH...
You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water...
You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water to make 20.00 mL of solution. HA reacts with KOH(aq) according to the following balanced chemical equation: HA(aq) + KOH (aq) --> KA (aq) + H20 (l) If 13.40 mL of 0.600 M KOH is required to titrate the unknown acid to the equivalence point, what is the concentration of the unknown acid? What is the molar mass of HA?
Data i got:
1g of solid acid=0.51706 ml
50 ml of water used to dissolve
0.5 ml of indicator added to acid solution
8.52 ml of 1M NaOH titrated from burrete into acid
solution.
The virtual lab stockroom contains NaOH, water and an unknown solid weak acid. Perform experiments to identify the pka and molar mass of the bottle of unknown solid acid. You may enter your answer in the form below the Virtual Lab NOTE: You can submit your...
Determination of Ka and Identification of an Unknown Weak Acid Post-lab Question 1. Suppose that a student performing this experiment mistakenly calibrated the pH meter using pH 8 buffer instead of pH 7 buffer. As a result of this error, all of the student's pH readings were too low. a) Would this error have affected the calculated molar mass of the unknown acid? Briefly explain. b) Would this error have affected the experimentally determined pKa of the unknown acid? Briefly...
how do we determine the mass of acid/mole of sodium hydroxide of
the unknown acid?
i
am just looking for the formula to solve it
D. Determination of the mass of an unknown acid required to neutralize one mole of hydroxide ion. Obtain a clean, dry capped shell vial containing an unknown acid. Record your unknown's number and label the vial. Keep this vial in your locker until your graded lab report has been returned to you. 1. Note: 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...
Please here is my lab questions for titration of weak acid. The
questions are very short. You have to determine the answers by just
looking at the graph based on the data points. Please give me the
answers of all of them. I would really appreciate. Please calculate
the molar mass question #7 as well. It will be of great help to
me.
Mass of the unknown acid: 0.2grams
Concentration of NaOH = 0.0500M
Formuld Bal pH of weak acid...
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