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need help with questions 5 and 6
5. A mixture of starch and iodine (12) turns...
5. Iodine reacts with starch to form a blue-colored complex. Explain the results of the iodine...
5. Iodine reacts with starch to form a blue-colored complex. Explain the results of the iodine test with the hydrolyzed starch solution. 6. Sucrose differs from honey in that honey is a mixture of glucose and fructose. Sucrose is a dis- accharide made up of them. Explain why honey is a quicker source of energy than sucrose.
someone help me with these 7 questions add a drop of iodine solution. If starch is present, I Wl iodine. The starch...
someone help me with these 7 questions
add a drop of iodine solution. If starch is present, I Wl iodine. The starch-iodine complex is deep blue-violet. Repeat this test with a com- mercial aspirin tablet and with the acetylsalicylic acid prepared in this experiment O N S at is the purpose of the concentrated phosphoric acid used in the first step? What would happen if the phosphoric acid were left out? 2. 1. Wh 3. If you used 250 mg...
just need help with questions 3. a & b always rate!!! Introduction Titration is a common...
just need help with questions 3. a & b
always rate!!!
Introduction Titration is a common analytical technique that is used to verify the concentrations of chemicals before they are sold as commercial products, in a process known as quality control. In this lab, you will be using a redox titration to find the concentration of the strong oxidizing agent hypochlorite (CIO) which is the active ingredient in bleach. Oxidizing and reducing agents are often determined using a redox titration....
Need help for answering first part(1) color change is due to presence? And what was the...
Need help for
answering first part(1) color change is due to presence? And what
was the reason for the equilibrium turn to reverse direction? And
also last 2 questions.!
Chemistry 102 EXPERİMENT3 Equilibrium& Le Chatelier's Principle tive Qualita of this experiment is to study qualitative aspects of chemical systems in dynamic equilibrium. in doing this experiment, you will learm the operation of Le Chateliers principle. n Vslowly add 1 to 2 drops of dilute 6 M sodium hydroxide solution to...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points)...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
How do I calculate the isolated moles and molarity of the 0.2M KIO3?
how do I calculate the isolated moles and molarity
of the 0.2M
KIO3?
0.1 M Sulfuric Distilled Solution A Mixturel Mixture II Mixture III Mixture IV 0.20 M KIO3 Solution 5 mL 5 mL 10 mL 10 mL Acid 0 mL 0.5 mL 0 mL 0.5 mL water 15 ml 14.5mL 10 mL 9.5 mL Lalculations: I. (6pt) Calculate the total number of moles of iodate ion present in each 0.2 M KlO3 solution. Calculate the molarity of iodate ion...
Need help with 3-6 Determination of Solubility Product Constant 10.7 Name Section PRE-LAB 1. In your...
Need help with 3-6
Determination of Solubility Product Constant 10.7 Name Section PRE-LAB 1. In your own words explain the common ion effect. The common ion effect is when the solubility of a salt is affected by the presence of an ion which is common to any of the ions in the salt. 2. What would happen to the volume of titrant needed to reach the equivalence point, if some of the solid particles were part of the analyte transferred...
Hello can you answer the incorrect question ? X Incorrect 1) What group does the Benedict's...
Hello can you answer the incorrect question ?
X Incorrect 1) What group does the Benedict's test oxidize? A. A ketone B. More than one of these C. An ether D. An aldehyde X (Your Answer) X Incorrect 3) If you have a polysaccharide, what color is it when mixed with lodina? A. Deep brown X (Your Answer) B. Deep violet C. Light Brown D. Prussian red X Incorrect 4) What sugar was negative to the Benedict's test? A. Fructose...
please I need help with this one question. Titration Procedure Prepare your starch solution by dissolving...
please I need help with this one question. Titration Procedure Prepare your starch solution by dissolving 0.040g of vitex starch in 20 mL of water. Prepare your 3%diluted commercial bleach solution (3% of the concentration of the commercial bleach, by volume.) Do not discard as you will use this solution for each of your trials. Dependingonyourinstructor’schosenmethod;deliverexactly3mLofcommercialbleach solution to a 100mL volumetric flask using the burette that contains the class’s supply of bleach, or pour some from the bottle into a...
Can anyone help me by checking my answers? please indicate the answer in a numerical order....
Can anyone help me by checking my answers? please indicate the
answer in a numerical order. thank you.
Question 1 1 pts TRUE or FALSE: When we are working with our metabolic unknown samples, we should prepare a new TSA slant each day. True False Question 2 2 pts Which of the following is NOT a possible result of a test in which your unknown bacteria were introduced into a tube of phenol red lactose broth? Fermentation of lactose producing...
5. Iodine reacts with starch to form a blue-colored complex. Explain the results of the iodine test with the hydrolyzed starch solution. 6. Sucrose differs from honey in that honey is a mixture of glucose and fructose. Sucrose is a dis- accharide made up of them. Explain why honey is a quicker source of energy than sucrose.
someone help me with these 7 questions
add a drop of iodine solution. If starch is present, I Wl iodine. The starch-iodine complex is deep blue-violet. Repeat this test with a com- mercial aspirin tablet and with the acetylsalicylic acid prepared in this experiment O N S at is the purpose of the concentrated phosphoric acid used in the first step? What would happen if the phosphoric acid were left out? 2. 1. Wh 3. If you used 250 mg...
just need help with questions 3. a & b
always rate!!!
Introduction Titration is a common analytical technique that is used to verify the concentrations of chemicals before they are sold as commercial products, in a process known as quality control. In this lab, you will be using a redox titration to find the concentration of the strong oxidizing agent hypochlorite (CIO) which is the active ingredient in bleach. Oxidizing and reducing agents are often determined using a redox titration....
Need help for
answering first part(1) color change is due to presence? And what
was the reason for the equilibrium turn to reverse direction? And
also last 2 questions.!
Chemistry 102 EXPERİMENT3 Equilibrium& Le Chatelier's Principle tive Qualita of this experiment is to study qualitative aspects of chemical systems in dynamic equilibrium. in doing this experiment, you will learm the operation of Le Chateliers principle. n Vslowly add 1 to 2 drops of dilute 6 M sodium hydroxide solution to...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
how do I calculate the isolated moles and molarity
of the 0.2M
KIO3?
0.1 M Sulfuric Distilled Solution A Mixturel Mixture II Mixture III Mixture IV 0.20 M KIO3 Solution 5 mL 5 mL 10 mL 10 mL Acid 0 mL 0.5 mL 0 mL 0.5 mL water 15 ml 14.5mL 10 mL 9.5 mL Lalculations: I. (6pt) Calculate the total number of moles of iodate ion present in each 0.2 M KlO3 solution. Calculate the molarity of iodate ion...
Need help with 3-6
Determination of Solubility Product Constant 10.7 Name Section PRE-LAB 1. In your own words explain the common ion effect. The common ion effect is when the solubility of a salt is affected by the presence of an ion which is common to any of the ions in the salt. 2. What would happen to the volume of titrant needed to reach the equivalence point, if some of the solid particles were part of the analyte transferred...
Hello can you answer the incorrect question ?
X Incorrect 1) What group does the Benedict's test oxidize? A. A ketone B. More than one of these C. An ether D. An aldehyde X (Your Answer) X Incorrect 3) If you have a polysaccharide, what color is it when mixed with lodina? A. Deep brown X (Your Answer) B. Deep violet C. Light Brown D. Prussian red X Incorrect 4) What sugar was negative to the Benedict's test? A. Fructose...
Can anyone help me by checking my answers? please indicate the
answer in a numerical order. thank you.
Question 1 1 pts TRUE or FALSE: When we are working with our metabolic unknown samples, we should prepare a new TSA slant each day. True False Question 2 2 pts Which of the following is NOT a possible result of a test in which your unknown bacteria were introduced into a tube of phenol red lactose broth? Fermentation of lactose producing...
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