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when the carbohydrate is reacted with basic solution if cu2+,
a red precipitate forms
A carbohydrate...
a carbohydrate can be hydrolyzed to form two moles of a monosaccharide. when the carbohydrate is...
a carbohydrate can be hydrolyzed to form two moles of a
monosaccharide. when the carbohydrate is reacted with a basic
solution of cu2+, a red precipitate forms.
A carbohydrate can be hydrolyzed to form two moles of a monosaccharide. When the carbohydrate is reacted with a basic solution of Cu2+, a red precipitate forms. Which statement is consistent with this information? The carbohydrate is a... reducing disaccharide non-reducing disaccharide. non-reducing glycoside. a sugar alcohol
1-10 help!!! 1) A carbohydrate that gives two molecules when it is completely hydrolyzed is known...
1-10 help!!!
1) A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a A) monosaccharide. B) disaccharide. C) polysaccharide. D) starch. 2) A reducing sugar gives a precipitate of silver metal with Benedict's reagent. a. True b. False 3) Cellulose will give a positive Benedict's test. Sa TrueS b. False 4) The product of oxidation of an aldose is a carboxylic acid. Sa True b. False 5) Maltose is a reducing sugar. a. True b....
Carbohydrates, more commonly known as sugars, are made up of carbon, oxygen, and hydrogen atoms. The...
Carbohydrates, more commonly known as sugars, are made up of carbon, oxygen, and hydrogen atoms. The smallest unit of a carbohydrate is a monosaccharide. Two monosaccharides make up a disaccharide, and many monosaccharides make up a polysaccharide. Disaccharides and polysaccharides can be hydrolyzed back into the individual monosaccharide units. Part A Select the statement that is incorrect. Select the statement that is incorrect. Complex sugars are carbohydrates. All carbohydrates have the general formula Cn(H2O)n. Simple sugars are carbohydrates. Carbohydrates contain...
A precipitate forms when a solution that is 0.10 M in Cu2+, Pb2+, and Ni2+ is...
A precipitate forms when a solution that is 0.10 M in Cu2+, Pb2+, and Ni2+ is saturated with H2S and adjusted to pH = 1. What sulfides are present in the precipitate? [H2S] = 0.10 M; for H2S, Ka1 ´ Ka2 = 1.1 ´ 10–24 Ksp: CuS = 8.5 ´ 10–45, PbS = 7.0 ´ 10–29, NiS = 3.0 ´ 10–21 (The answer is D, Could anyone explain it by steps?) A) CuS, PbS, and NiS B) PbS and NiS...
oup e i ent i S caPapie to act as n veducin s enown 6. Draw the ring structures for (-D-fructose and for e-bsfructoseS 7. An unknown carbohydrate gave a red precipitate when tested with Fehling&#...
oup e i ent i S caPapie to act as n veducin s enown 6. Draw the ring structures for (-D-fructose and for e-bsfructoseS 7. An unknown carbohydrate gave a red precipitate when tested with Fehling's reagent, turned red when reacted with Seliwanoff's reagent, and quickly gave a red precipitate when reacted with Barfoed's reagent. What conclusions can be made about this carbohydrate? 9. What test could be used to differentiate between sucrose and lactose? Explain.
oup e i ent...
2. When a basic solution is dissolved in water, how and why does the concentration of...
2. When a basic solution is dissolved in water, how and why does the concentration of H +ions change in the solution? ( two reasons) 3. What is the difference in H+ ion concentration between a solution that is pH 4 and a solution that is pH 8? If a solution has a pH of 6, express the concentration of H+ in moles/liter. 9. How are two monosaccharides joined to form a disaccharide? How are disaccharides digested?
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A...
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A monosaccharides can exist as an open chain or as a cyclic compound. Which form is more stable? 3. (4 pts) Sucrose is the only carbohydrate for which it is necessary to make a fresh solution (all of the other carbohydrates will already be prepared in solution for you). When performing the Benedict's test and the others), why is it necessary for YOU to make...
group on the 13. In double-stranded DNA, a pyrimidine group on one strand base pairs with...
group on the 13. In double-stranded DNA, a pyrimidine group on one strand base pairs with a other strand; the two strands are oriented in directions. a. purine, parallel b. purine, antiparallel c. pyrimidine, parallel d. pyrimidine, antiparallel Questions 14 and 15 refer to the following information: A disaccharide composed of arabinose and xylose gives arabinose and xylonic acid by reaction with Bry-water followed by hydrolysis. Reaction of its methyl glycoside with iodomethane under basic conditions followed by hydrolysis gives...
18. Which of the following compound(s) would undergo mutarotation in aqueous solution? 19. Draw the chair...
18.
Which of the following compound(s) would undergo mutarotation in
aqueous solution?
19. Draw the chair conformation of a-D-galactopyranose.
20. Which of the following compound(s) is a glycoside?
21. Provide the reagents neccesary to carry out the following
conversion.
22. Predict the product(s) for the following reaction.
23. D-glucose & D-galactose are ______epimers of each
other.
24. Predict the product(s) for the following reaction.
25. Which of the following compound(s) would produce D-glucose
and D-mannose when treated with HCN followed...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14 8 25 16 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds...
a carbohydrate can be hydrolyzed to form two moles of a
monosaccharide. when the carbohydrate is reacted with a basic
solution of cu2+, a red precipitate forms.
A carbohydrate can be hydrolyzed to form two moles of a monosaccharide. When the carbohydrate is reacted with a basic solution of Cu2+, a red precipitate forms. Which statement is consistent with this information? The carbohydrate is a... reducing disaccharide non-reducing disaccharide. non-reducing glycoside. a sugar alcohol
1-10 help!!!
1) A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a A) monosaccharide. B) disaccharide. C) polysaccharide. D) starch. 2) A reducing sugar gives a precipitate of silver metal with Benedict's reagent. a. True b. False 3) Cellulose will give a positive Benedict's test. Sa TrueS b. False 4) The product of oxidation of an aldose is a carboxylic acid. Sa True b. False 5) Maltose is a reducing sugar. a. True b....
oup e i ent i S caPapie to act as n veducin s enown 6. Draw the ring structures for (-D-fructose and for e-bsfructoseS 7. An unknown carbohydrate gave a red precipitate when tested with Fehling's reagent, turned red when reacted with Seliwanoff's reagent, and quickly gave a red precipitate when reacted with Barfoed's reagent. What conclusions can be made about this carbohydrate? 9. What test could be used to differentiate between sucrose and lactose? Explain.
oup e i ent...
1. (2 pts) What is produced when polysaccharides and disaccharides are hydrolyzed? 2. (2 pts) A monosaccharides can exist as an open chain or as a cyclic compound. Which form is more stable? 3. (4 pts) Sucrose is the only carbohydrate for which it is necessary to make a fresh solution (all of the other carbohydrates will already be prepared in solution for you). When performing the Benedict's test and the others), why is it necessary for YOU to make...
group on the 13. In double-stranded DNA, a pyrimidine group on one strand base pairs with a other strand; the two strands are oriented in directions. a. purine, parallel b. purine, antiparallel c. pyrimidine, parallel d. pyrimidine, antiparallel Questions 14 and 15 refer to the following information: A disaccharide composed of arabinose and xylose gives arabinose and xylonic acid by reaction with Bry-water followed by hydrolysis. Reaction of its methyl glycoside with iodomethane under basic conditions followed by hydrolysis gives...
18.
Which of the following compound(s) would undergo mutarotation in
aqueous solution?
19. Draw the chair conformation of a-D-galactopyranose.
20. Which of the following compound(s) is a glycoside?
21. Provide the reagents neccesary to carry out the following
conversion.
22. Predict the product(s) for the following reaction.
23. D-glucose & D-galactose are ______epimers of each
other.
24. Predict the product(s) for the following reaction.
25. Which of the following compound(s) would produce D-glucose
and D-mannose when treated with HCN followed...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14 8 25 16 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds...
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