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(2 pts) Circle the molecules shown below that would be completely miscible with water or soluble ...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lin...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lines and polygons represent carbons with C-H bonds omitted!) н. сн, Н,с. сн C H OH H,с н HO C-H Ш сн, H2C-o H C OH П I HC-0 H -C OH но Hас—о CH-он C В Circle the polar sites on each of these molecules a. b. Which of these molecules is/are soluble in water? Explain briefly.
Pt.1 predict whether soluble or insoluble. Pt 2. Miscible or immiscible Pt 3 and beyond- answering...
Pt.1 predict whether soluble or insoluble.
Pt 2. Miscible or immiscible
Pt 3 and beyond- answering questions
1. For each of the following pairs of solute and solvent, predict whether the solute would be soluble or insoluble. After making your predictions, you can check your answers by looking up the compounds in The Merck Index or the CRC Handbook of Chemistry and Physics. Generally, The Merck Index is the easier reference book to use. If the substance has a solubility...
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK,...
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
with the 15. (16 pts) Which of the following molecules are aromatic and which are not? Support your choices Hückel calculation, a Frost circle, and a few words of explanation in each case. spectr...
with the 15. (16 pts) Which of the following molecules are aromatic and which are not? Support your choices Hückel calculation, a Frost circle, and a few words of explanation in each case. spectrum. Then peak. Atomic 16. (9 pts) From the molecules shown below, choose the one that one matches the given mass explain your choice and draw the structure of the fragment that corresponds to the base masses (in a.m.u.) are as follows: C 12;H-10-16; F 19:CI- 35.45;Br...
Why would the answer be A? - 4. The molecule shown below is produced by Vibrio harveyi bacteria, as a precursor to a sig...
Why would the answer be A?
- 4. The molecule shown below is produced by Vibrio harveyi bacteria, as a precursor to a signalling molecule. Но он ТОН НО .. If the molecule was treated with aqueous acid, which one of the following molecules would be the product? OH HO HO
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible...
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible with water? a) carbon tetrachloride b) ethyl alcohol c) bromine d) oil Which anion will not precipitate silver ion? a) chloride b) nitrate c) bromide d) carbonate Which pH listed below is most acidic? a) 3 d) 7 c)9 d) 14 A hydrogen ion consists of a(n) a) electron. b) proton. c) neutron. d) proton and electron. Bronsted and Lowry defined an acid as...
21. Rank the following molecules from least to most soluble in water. e.g. if you think...
21. Rank the following molecules from least to most soluble in water. e.g. if you think that 1 is the least soluble, then 4, then 5, then 3, and 2 is the most soluble, you would write your answer as 14532. он но он
Hand in this assignment as you ente Grade Name water and hexane miscible (soluble) or immiscible?...
Hand in this assignment as you ente Grade Name water and hexane miscible (soluble) or immiscible? b. Explain. c. Which is the top layer? d. Explain. (1 ) 2. What is the purpose of ac the purpose of adding hexane to the aqueous solutions of halogens? (2 points) Why do you discard solutions containing hexane in the separatory funnel instead of the organic waste container? (2 points) 4. Write the formulas for the diatomic halogens in order of increasing strength...
7. (4 pts) For each of the following solid organic molecules, circle the solvent that would...
7. (4 pts) For each of the following solid organic molecules, circle the solvent that would be the best for re-crystallization. CH3 HN Н3Слл CH3 "CH3 OH HO H2N-NH2 Water Water Water Water 95% Ethanol 95% Ethanol 95% Ethanol 95% Ethanol Hexane Hexane Hexane Hexane
Discussion Questions The structures of acetanilide and malonic acid are provided below 1. For each structure,...
Discussion Questions The structures of acetanilide and malonic acid are provided below 1. For each structure, draw circles around the polar and nonpolar regions of the molecule, and label each circled regiorn with the type of intermolecular attractive force it can use to interact with other molecules. Acetanilide Malonic Acid но CH2 OH 2. Now-thoroughly explain (on the basis of polarity/nonpolarity and intermolecular attractive forces) how the acetanilide was separated from the malonic acid by recrystallization from water. And explain...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lines and polygons represent carbons with C-H bonds omitted!) н. сн, Н,с. сн C H OH H,с н HO C-H Ш сн, H2C-o H C OH П I HC-0 H -C OH но Hас—о CH-он C В Circle the polar sites on each of these molecules a. b. Which of these molecules is/are soluble in water? Explain briefly.
Pt.1 predict whether soluble or insoluble.
Pt 2. Miscible or immiscible
Pt 3 and beyond- answering questions
1. For each of the following pairs of solute and solvent, predict whether the solute would be soluble or insoluble. After making your predictions, you can check your answers by looking up the compounds in The Merck Index or the CRC Handbook of Chemistry and Physics. Generally, The Merck Index is the easier reference book to use. If the substance has a solubility...
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
with the 15. (16 pts) Which of the following molecules are aromatic and which are not? Support your choices Hückel calculation, a Frost circle, and a few words of explanation in each case. spectrum. Then peak. Atomic 16. (9 pts) From the molecules shown below, choose the one that one matches the given mass explain your choice and draw the structure of the fragment that corresponds to the base masses (in a.m.u.) are as follows: C 12;H-10-16; F 19:CI- 35.45;Br...
Why would the answer be A?
- 4. The molecule shown below is produced by Vibrio harveyi bacteria, as a precursor to a signalling molecule. Но он ТОН НО .. If the molecule was treated with aqueous acid, which one of the following molecules would be the product? OH HO HO
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible with water? a) carbon tetrachloride b) ethyl alcohol c) bromine d) oil Which anion will not precipitate silver ion? a) chloride b) nitrate c) bromide d) carbonate Which pH listed below is most acidic? a) 3 d) 7 c)9 d) 14 A hydrogen ion consists of a(n) a) electron. b) proton. c) neutron. d) proton and electron. Bronsted and Lowry defined an acid as...
21. Rank the following molecules from least to most soluble in water. e.g. if you think that 1 is the least soluble, then 4, then 5, then 3, and 2 is the most soluble, you would write your answer as 14532. он но он
Hand in this assignment as you ente Grade Name water and hexane miscible (soluble) or immiscible? b. Explain. c. Which is the top layer? d. Explain. (1 ) 2. What is the purpose of ac the purpose of adding hexane to the aqueous solutions of halogens? (2 points) Why do you discard solutions containing hexane in the separatory funnel instead of the organic waste container? (2 points) 4. Write the formulas for the diatomic halogens in order of increasing strength...
7. (4 pts) For each of the following solid organic molecules, circle the solvent that would be the best for re-crystallization. CH3 HN Н3Слл CH3 "CH3 OH HO H2N-NH2 Water Water Water Water 95% Ethanol 95% Ethanol 95% Ethanol 95% Ethanol Hexane Hexane Hexane Hexane
Discussion Questions The structures of acetanilide and malonic acid are provided below 1. For each structure, draw circles around the polar and nonpolar regions of the molecule, and label each circled regiorn with the type of intermolecular attractive force it can use to interact with other molecules. Acetanilide Malonic Acid но CH2 OH 2. Now-thoroughly explain (on the basis of polarity/nonpolarity and intermolecular attractive forces) how the acetanilide was separated from the malonic acid by recrystallization from water. And explain...
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