Homework Answers
Solution:
From the given experiment, it can be seen that alka setzer neutralizes the effect of acid and base.
Alka setzer behaves as a buffer because addition of acid or bases does not affect its pH. It resists the change in pH due to its buffering capacity. It contains a weak acid aspirin, sodium bicarbonate and citric acid. These ingradients are working to neutralize the effect of added acid or base.
Milk does not behave as buffer because addition of acid or base causes change in pH.
Add Answer to:
lab report on effect of acid and base on the pH of milk and
Alka seltzer...
The effect of Acid and Base on the pH of milk and Alka-Seltzer. write an introduction...
The effect of Acid and Base on the pH of milk and Alka-Seltzer. write an introduction for it as a lab report
Below is a lab hand out for the questions. All my data for the questions are...
Below is a lab hand out for the questions. All my data for the questions are filled out below in BOLD LETTERING. All the questions I need answered are at the bottom with boxes where to put the answers. Background Alka-Seltzer� is an over-the-counter antacid and pain relief drug. The tablet contains aspirin (acetylsalicylic acid), citric acid, and sodium bicarbonate (NaHCO3). Sodium bicarbonate (NaHCO3) is responsible for the effervescent action of Alka-Seltzer. In this lab we will investigate the reaction...
check answers please thanks? vom voline SE 5: Buffers o n test effect of acid and...
check answers please thanks?
vom voline SE 5: Buffers o n test effect of acid and bases on the carbonic acid/sodium bicarbonate buffer system. ere will test et ou will need: 4 small beakers balance IM NaOH pH paper baking soda glass stirring rod 100 ml beaker seltzer water graduated cylinder IMHCI Prepare 50 mL of a butter containing 0.1M NaHCO. in carbonic acid. Use a source NaHCO, and seltzer water as a source of carbonic acid How much NaHCO,...
Interpretation of Buffer Preparation and pH measurement Hello! We did an experiment in lab creating buffers...
Interpretation of Buffer Preparation and pH measurement Hello! We did an experiment in lab creating buffers using 3 different methods, 1)weak acid + strong base, 2) wake base + strong acid, and 3)weak acid + weak base. The desired pH (and the number used to calculate concentration of components) was 7.5....Solution 1 had pH of 5.9, solution 2 had pH of 7.3 and solution 3 had pH of 7.1 I'm having trouble interpreting these results. Were these pH levels expected?...
Part III: Effect of adding strong acid/base ApH Theoretical ApH Theoretical pH Solution ID Measur...
Part III: Effect of adding strong acid/base ApH Theoretical ApH Theoretical pH Solution ID Measured pH 0.00 1,30 0.00 1.3ง 0300 1,1 11.31 ,05 .00 12,00 0.00 s,ho 1),MO M.AS Note: ApH is the measured pH of the solution - pH of the solution before acid/base is added In part III of the experiment, what trend(s) did you observe in the pH values? Was therea good correlation between measured and theoretical pH values? 3.
Part III: Effect of adding strong...
Pls help on filling out Tritraion of a Polyprotic acid chart Data from lab Titration #1...
Pls help on filling out Tritraion of a Polyprotic acid chart
Data from lab
Titration #1
Titration #2
Titration #3
mL base added
pH
mL base added
pH
mL base added
pH
1
0.7
1
0.7
1
0.7
2
1.1
2
1
2
0.9
3
1.5
3
1.4
3
1.3
4
1.7
4
1.6
4
1.5
5
1.9
5
1.8
5
1.7
6
2
6
2.1
6
2
7
2.2
7
2.2
7
2.2
8
2.4
8
2.3
8
2.2...
How do you find the cost per mL acid? and please explain the answers the post lab questions. If a...
How do you find the cost per
mL acid? and please explain the answers the post lab questions. If
any other information is needed, let me know please.
POST-LAB QUESTIONS Show all work for full credit. 1. Why did you have to remove CO, from your partially neutralized stomach acid before t he titration? (This was done by heating the solution gently.) 2. Why was methyl red used as an indicator in this experiment rather than phenolph Based upon the...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution that was used to titrate 1.2 g of potassium acid phthalate if 37.50 ml of the base were reauired to get to the end point of the titration. 2 It takes 12.45 ml. of a 0.500 M NaOH solution larity of the acid to titrate 30.0 mL of acetic acid. What is the mo- 3. Using the titration curve below, calculate the K, of...
Using this titration graph (pH vs. base volume added), find the unknown Amino Acid and show...
Using this titration graph (pH vs. base volume added), find the
unknown Amino Acid and show its pK1, pK2 and pI.
Unknown #3 buffer-pH vs. mL 0.5M NaOH 12 10 6 4 0 10 15 20 25 30 Volume of 0.5M NaOH (mL)
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
check answers please thanks?
vom voline SE 5: Buffers o n test effect of acid and bases on the carbonic acid/sodium bicarbonate buffer system. ere will test et ou will need: 4 small beakers balance IM NaOH pH paper baking soda glass stirring rod 100 ml beaker seltzer water graduated cylinder IMHCI Prepare 50 mL of a butter containing 0.1M NaHCO. in carbonic acid. Use a source NaHCO, and seltzer water as a source of carbonic acid How much NaHCO,...
Part III: Effect of adding strong acid/base ApH Theoretical ApH Theoretical pH Solution ID Measured pH 0.00 1,30 0.00 1.3ง 0300 1,1 11.31 ,05 .00 12,00 0.00 s,ho 1),MO M.AS Note: ApH is the measured pH of the solution - pH of the solution before acid/base is added In part III of the experiment, what trend(s) did you observe in the pH values? Was therea good correlation between measured and theoretical pH values? 3.
Part III: Effect of adding strong...
Pls help on filling out Tritraion of a Polyprotic acid chart
Data from lab
Titration #1
Titration #2
Titration #3
mL base added
pH
mL base added
pH
mL base added
pH
1
0.7
1
0.7
1
0.7
2
1.1
2
1
2
0.9
3
1.5
3
1.4
3
1.3
4
1.7
4
1.6
4
1.5
5
1.9
5
1.8
5
1.7
6
2
6
2.1
6
2
7
2.2
7
2.2
7
2.2
8
2.4
8
2.3
8
2.2...
How do you find the cost per
mL acid? and please explain the answers the post lab questions. If
any other information is needed, let me know please.
POST-LAB QUESTIONS Show all work for full credit. 1. Why did you have to remove CO, from your partially neutralized stomach acid before t he titration? (This was done by heating the solution gently.) 2. Why was methyl red used as an indicator in this experiment rather than phenolph Based upon the...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution that was used to titrate 1.2 g of potassium acid phthalate if 37.50 ml of the base were reauired to get to the end point of the titration. 2 It takes 12.45 ml. of a 0.500 M NaOH solution larity of the acid to titrate 30.0 mL of acetic acid. What is the mo- 3. Using the titration curve below, calculate the K, of...
Using this titration graph (pH vs. base volume added), find the
unknown Amino Acid and show its pK1, pK2 and pI.
Unknown #3 buffer-pH vs. mL 0.5M NaOH 12 10 6 4 0 10 15 20 25 30 Volume of 0.5M NaOH (mL)
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
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