homework 3 questions

43. In DNA the nucleic acid bases form hydrogen bonds between them, which are responsible for the formation of the double-stranded helix. A hydrogen bond donor is defined as any hydrogen atom that can participate in a hydrogen bond, whereas a hydrogen bond acceptor is defined as any atom that can "receive" that hydrogen atom to form a hydrogen bond. How many hydrogen bond acceptors does guanine (shown below) have? ABORE 6 B) 3 -NH & H -NH₂

Draw the condensed structure of the organic molecule that produces sodium propanoate when reacted with NaOH. Correct each molecule in the drawing area below so that it has the structure it would have if it were dissolved in a 0.1 M aqueous solution of NaOH. If there are no changes to be made, check the No changes box under the drawing area. No changes. HO–CH,—CH, NH HO—CH, OH C™ X с O

Polyphenols are compounds found in many fruits, vegetables, tea, and wine. Predict the solubility of this polyphenol, gallic acid, in water.

Use the following image All compounds belong to the  alcohol or ester family because they contain a  hydroxyl or carboxyl functional group?

Question 25

Acid anhydride Carboxylic Acid H₂C CH₂OH H₂O CH,OH CH3 Ester H₂C O CH₂OH 1. CH₂MgBr 2. H₂O* Acid chloride CH,CH,NH, Tertiary alcohol Amide

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н! H CH3CH₂OH (solvent)

Br Predict the solubility of this structure in water. N (+) CH3 Q Search Question 10 of 20 A) water soluble B) insoluble in water C) partially soluble in water D) soluble in organic solvents only 99+ a mw.p O

Ansaid and Motrin belong to the group of drugs known as nonsteroidal anti-inflammatory drugs (NSAIDs). Both are only slightly soluble in water, but one is a little more soluble than the other. Which of the drugs has the greater solubility in water?

Box the functional group/s that contribute to the solubility (hydrophilic and lipophilic) of the given organic molecules then check whether the drug molecule is hydrophilic or lipophilic.

Table 1. Physical Properties of Selected Compounds Density (g/mL) Melting point (°C) Boiling point (°C) Substance Acetanilide 1.22 114 304 Acetone 0.79 -95 56 Benzophenone Bromoform 1.15 48 306 150 2.89 0.98 0.79 2.46 8 -2.4 2,3-Butanedione t-Butyl alcohol Cadmium nitrate 4H;O Chloroform Cyclohexane p-Dibromobenzene p-Dichlorobenzene Diphenyl Diphenylamine Diphenylnethane Ether, ethyl propyl 88 83 25 59 132 1.49 0.78 1.83 -63.5 6.5 86.9 61 81.4 219 1.46 53 70 53 27 174 0.99 255 1.16 302 265 1.00 1.37 -79 64 Hexane 0.66 69 Isopropyl alcohol Lauric acid 0.79 0.88 1.63 -98 83 225 330 43 Magnesium nitrate 6H2O Methyl alcohol Methylene chloride Naphthalene a-Naphthol Phenyl benzoate Propionaldehyde Sodium acetate 3H2O Stearic acid Thymol Toluene p-Toluidine Zinc chloride 89 79 1.34 -98 -97 65 40.1 1.15 1.10 80 218 94 288 1.23 71 314 0.81 1.45 0.85 0.97 -81 58 48.8 123 70 291 232 52 0.87 0.97 2.91 -95 111 45 200 283 732 MAR ...

Hello can I get help with this question soon please?!? I am very confused and do not know where to start. An explanation leading to the correct answer would be helpful. Thank you!

Rank the following compounds in order of increasing solubility in water

PAP Chemistry-2903012-42100P-1/ Le Chatelier's Principle/ Lesson 128 2. Zinc (Zn) granules react slowly with dilute hydrochloric acid (HCI), but much faster if the acid is concentrated. Zn(s) 2HCI(aq)ZnCl2(aq) + H2(g) Zinc + Hydrochloric Acid Zinc Chloride + Hydrogen What causes the reaction to proceed faster with concentrated acid? The concentrated hydrochloric acid causes more hydrogen gas to be produced. The pressure of hydrogen gas molecules increases as concentration increases. The concentrated hydrochloric acid molecules move faster than in dilute acid. There are more collisions between the zinc and concentrated hydrochloric acid. PREVIOU

>> A B C D Question 18 Choose the correct chemical structure for every single acronym used below: PCC H-N→ ? A B с D 20 Cr₂07 H-NO O= H-N→ CrO3Cl Na Na

1. Which is water-soluble? Why? 2. What is another property which will make each one different from the others?

A Moving to another question will save this response. Question 20 Pataday is the brand name for a type of allergy eye drops. Which of the following is NOT true regarding Pataday? The structure is shown below. HO O contains an ether O contains an amine contains an amide O contains two aromatic rings O contains a carboxylic acid A Moving to another question will save this response. MacB 20 000 000 F2 F3 F4 F5

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N5

The dose makes the poison. Calculate the total volume of pure ethanol in just one Ethanol is highly toxic if it is consumed in large quantities. 23.5 fl. oz. (695 mL) can of American malt liquor, which is 12% volume per volume (v/v) ethanol. Although it is the second least toxic of the five alcohols discussed in this case, the ingestion of large quantities of Enter your answer in milliliters. ethanol is not safe. One serious problem with ethanol consumption is how the quantity is conveyed to the consumer. For example, American malt liquor can be sold pure ethanol: mL in 23.5 fl. oz. (695 mL) cans and is 12% volume per volume (v/v) ethanol. Although these cans are labeled as containing multiple servings, many young people consider one can to be a single serving. Drinking two cans of this beverage can result in an accidental overdose of ethanol. Two cans may not seem like much until you do the math.

In the empty box, provide appropriate reagents and reaction conditions necessary to convert Salicylic Acid to Aspirin. HO 2 OH Salicylic Acid OH Aspirin

Question 10 Based on your answers to Questions 7, 8, and 9, which ranks these three compounds in order of increasing water solubility? "NH₂ NH₂ NH₂ "NH₂

Take a look at this organic reaction: i CH₂ C-CH₂-CH3 + 2 CH₂OH H₂SO₂ MeOH OCH₁ CH3CCH₂CH₂ + 2 H₂O OCH₂ The reactant molecule is re-drawn in the drawing area below. Highlight in red any groups in this molecule in which carbon atoms are oxidized by the reaction. Highlight in blue any groups in which carbon atoms are reduced. If no carbon atoms are oxidized or reduced, check the box under the drawing area. 1-C₁₂- CH, C-CH₂-CH, e