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Tube Order L -> R: 1) Unknown, 2) HCI (aq), 3) H20 (0), 4) NaHCO3(aq), 5)...
Part C: Unknown pH 1) What color do you see for each sample? Be specific. a....
Part C: Unknown pH 1) What color do you see for each sample? Be specific. a. Unknown 1: Club Soda = b. Unknown 2: Alkaline water = C. Unknown 3: Bleach = d. Unknown 4: Acetate Buffer = e. Unknown 5: Carbonate Buffer= f. Unknown 6: Vodka = 2) Using the ranges of the known substances estimate the pH of each of the unknowns by the color of the red cabbage indicator. a. Unknown 1: Club Soda = b. Unknown...
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Lit...
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
Number#1,2,3and 4 (8 points) Table 1: pH of Household Substances using Litmus Paper and Natural Indicators...
Number#1,2,3and 4
(8 points) Table 1: pH of Household Substances using Litmus Paper and Natural Indicators PH Determined Using pH paper Color Change using Cabbage Juice Indicator Substance Baking Soda light bu s Vinegar 1light pin Carbonated Water 4 Bleach s Lemon Juice super grt e Pink oreer ghrt pink 2 Window Cleaner 7 Aspirin 4t 2 8 Dish Soap (n wvite blue Toothpaste Antacid Tablets Drain Cleaner Household Ammonia Unknown Solution # light blue 2. beige light 9mi 1乙...
Just need help explaining number 4 and 5, please. Solution vinegar Chan WN - No Chord...
Just need help explaining number 4 and 5, please.
Solution vinegar Chan WN - No Chord Blue Red Red Cabbage PH Litmus Litmus Julce ang Wo chance turned Pink 3.44 No change and Furnaceno lemon juice cachorro Cham Mo Change Pau Riot 12.23 Mo change soft drink Chango No Channe laht Pink 4.39 drain cleaner Norhanga Change Yollow-groon 12.921 ents Nochana changa taal 10.381 7 la I chingo chango savos 60 a 7 acidic Processing the Data 1. Which of...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
5. 3. In Part 1 of the experiment (preparation of Ca²+ (aq) solution of known concentration),...
5. 3. In Part 1 of the experiment (preparation of Ca²+ (aq) solution of known concentration), the volumes of water used in steps 1, 2, 3, and 5 are all approximate. Why doesn't it matter that these volumes are approximate rather than accurately measured? (Be specific.) 4. If a standard Ca? solution is 100 ppm and 50 mL of solution is used for the standardization, calculate the approximate volume of 2.5 mM EDTA+ solution needed to reach the end point...
Weak acid-base indicator equilibria Step 1: Obtain a small test tube and add approximately 5mL wa...
Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
approximately 5mL water. Next, add 10 drops of a methyl
violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
Answer the following Pro-Lab Study Questlona 1. What does the pH of a sclution tell you? 2. What is ncutralization?...
Answer the following
Pro-Lab Study Questlona 1. What does the pH of a sclution tell you? 2. What is ncutralization? 3. What is a baffer? pH Colors Using Red Cabbage Indicator A plH Calors of Acldle Salutions Colors of Basle Solations pll 1 8 2 3 10 11 12 6 L3 Color of Neutral Solutien 7 119 7 7 6 5 4 2 T R LO LLI 3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 10kb Probe А 5kb -UI III TIT II Probe B 11kb 7kb — color pink white red pink red pink pink white pink white red pink red white pink pink red pink white pink red pink c. probes A and B: list the animals that show recombination between these markers and then calculate CM distance between them. Which...
2. Define fermentation. 3. What is purpose of the phenol red in the fermentation tube? 4....
2. Define fermentation. 3. What is purpose of the phenol red in the fermentation tube? 4. What is the function of the Durham tube in the fermentation tube? 5. What is the color of phenol red at an acid pH? 6. What is the function of ß-galactosidase?
Part C: Unknown pH 1) What color do you see for each sample? Be specific. a. Unknown 1: Club Soda = b. Unknown 2: Alkaline water = C. Unknown 3: Bleach = d. Unknown 4: Acetate Buffer = e. Unknown 5: Carbonate Buffer= f. Unknown 6: Vodka = 2) Using the ranges of the known substances estimate the pH of each of the unknowns by the color of the red cabbage indicator. a. Unknown 1: Club Soda = b. Unknown...
Acid, bases and buffers
Acids, Bases, and Buffers CHEM& 121 Lab Partner Data Part A Red pH Red Cabbage Test Tube Blue Litmus (color) Solution Juice (color)values (colbr) no reaction 2.890 Magenta 11.37dark green Red blue no reaction 2.700 Magenta lemon juice soft drink drain cleaner no reaction detergent baking soda no reaction red red no raction 3.530 Purple blue 12.56 no reactionno reaction 8.700 dark green 9.350 teal/green Part B Total Number of rops of HCl(aq) Added DI Water...
Number#1,2,3and 4
(8 points) Table 1: pH of Household Substances using Litmus Paper and Natural Indicators PH Determined Using pH paper Color Change using Cabbage Juice Indicator Substance Baking Soda light bu s Vinegar 1light pin Carbonated Water 4 Bleach s Lemon Juice super grt e Pink oreer ghrt pink 2 Window Cleaner 7 Aspirin 4t 2 8 Dish Soap (n wvite blue Toothpaste Antacid Tablets Drain Cleaner Household Ammonia Unknown Solution # light blue 2. beige light 9mi 1乙...
Just need help explaining number 4 and 5, please.
Solution vinegar Chan WN - No Chord Blue Red Red Cabbage PH Litmus Litmus Julce ang Wo chance turned Pink 3.44 No change and Furnaceno lemon juice cachorro Cham Mo Change Pau Riot 12.23 Mo change soft drink Chango No Channe laht Pink 4.39 drain cleaner Norhanga Change Yollow-groon 12.921 ents Nochana changa taal 10.381 7 la I chingo chango savos 60 a 7 acidic Processing the Data 1. Which of...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
5. 3. In Part 1 of the experiment (preparation of Ca²+ (aq) solution of known concentration), the volumes of water used in steps 1, 2, 3, and 5 are all approximate. Why doesn't it matter that these volumes are approximate rather than accurately measured? (Be specific.) 4. If a standard Ca? solution is 100 ppm and 50 mL of solution is used for the standardization, calculate the approximate volume of 2.5 mM EDTA+ solution needed to reach the end point...
Weak acid-base indicator equilibria
Step 1: Obtain a small test tube and add
approximately 5mL water. Next, add 10 drops of a methyl
violet indicator, and record the color of the
solution.
Step 2: Add ~4 drops of 6 M HCl to the solution,
and record the color of the solution.
(be careful when handling concentrated acids and bases)
Step 3: Add 6 M NaOH until the
color of the solution shifts back to its original color.
Estimate the pH...
Answer the following
Pro-Lab Study Questlona 1. What does the pH of a sclution tell you? 2. What is ncutralization? 3. What is a baffer? pH Colors Using Red Cabbage Indicator A plH Calors of Acldle Salutions Colors of Basle Solations pll 1 8 2 3 10 11 12 6 L3 Color of Neutral Solutien 7 119 7 7 6 5 4 2 T R LO LLI 3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 10kb Probe А 5kb -UI III TIT II Probe B 11kb 7kb — color pink white red pink red pink pink white pink white red pink red white pink pink red pink white pink red pink c. probes A and B: list the animals that show recombination between these markers and then calculate CM distance between them. Which...
2. Define fermentation. 3. What is purpose of the phenol red in the fermentation tube? 4. What is the function of the Durham tube in the fermentation tube? 5. What is the color of phenol red at an acid pH? 6. What is the function of ß-galactosidase?
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