Consider the structures of KHP and phenolphthalein and explain why each has a single acidic hydrogen...
Consider the structures of KHP and phenolphthalein and explain why each has a single acidic hydrogen (one that dissociates as a weak acid) when there are several hydrogen atoms in the structure (HINT: Review the rules for predicting acid strength).
Homework Answers
The acidic Hydrogen is generally the one which is attached to high electronegative element like O . In the structures we have only 1 acidic H in each . This is because once H+ is released the resulting anion is stabilised due to resonance . The more stable is anion the higher is acidic nature of that Hydrogen. For remaiing H present in molecule when it is removed as H+ ( example the benzene C-H) we dont get stable anion . Hence those H are not acidic.
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Consider the structures of KHP and phenolphthalein and explain
why each has a single acidic hydrogen...
Valence Far Charge EACH atom within Lewis Structure Flered molecular Geometry of central atoms) Molecules SO SO Str...
Valence Far Charge EACH atom within Lewis Structure Flered molecular Geometry of central atoms) Molecules SO SO Structure 2 SO, D2. How is resonance shown in the three structures of SO,? Online this structure is often shown with 3 double bonds to each oxygen, explain why this is incorrect? Electronie and molecular Geometry of Fermal Charge EACH bom withia Lewis Structure ΗΝΟ, ΗΝΟ, D3. In the above structure, nitrogen is the central atoms but hydrogen is NOT bonded directly to...
Experiment #5-Acidity and Electrostatic Potential Experiment #5: Correlation of Acidity with Elec...
please show all work thank you im advance
Experiment #5-Acidity and Electrostatic Potential Experiment #5: Correlation of Acidity with Electrostatic Potential This Experiment is Done in Groups of 2 Background: his laboratory experiment is focused on theoretically predicting the acidity of several molecules. A software package called "Spartan" was used to predict the structure electrostatic potential of each molecule. The electrostatic potential at a point P is defined as the Coulomb energy of interaction between the electron-charge cloud of the...
identify which compound is more acidic and explain your choice. or each of the following compounds,...
identify which compound is more acidic and explain your choice. or each of the following compounds, Make sure you include structures of these which compounds in your answers ounds, 1. F (e) 24-Dimethy-3,5-hepanedione or 4, 4-Dimethy)-3,5-heptanedione (b) 1.2-Cyclopentanedione or 1,3-cyclopentanedione 2. When 2-hepten-4-one is treated with LDA, a proton is removed from one of the gamma (z) positions. identily which gamma position is deprotonated, and explain why the y proton is the most acidie proton in the compound. 3. Rank...
Several reagents and several organic structures are shown below. Construct a multistep synthetic route from the...
Several reagents and several organic
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the bins. Note that each bin will hold only one item, and not every
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HINT:
Start by locating the structures of
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in their bins. Note that the final product is a vicinal halohydrin,
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General Chemistry II Part 3. Now let's consider the effect of structure on acid-base properties: There...
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please help After answering these questions, enter your answers in Bb The system has been setup for 2 attempts. If f...
please help
After answering these questions, enter your answers in Bb The system has been setup for 2 attempts. If for any reason, the system fails, write your answers on this page, tear out the page from the manual and give this to your TA before prelab lecture starts. You are allowed up to two paper submission per quarter. 1. What is the proper reading of the buret shown? Question 1 answers 20.5 ml 19.44 ml 19.5 ml 19.6 mL...
please help 4. For each pair of structures below circle the most relatively stable one. Show...
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Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration...
Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration of a solution of sodium hydroxide (NaOH) using a 0.500M potassium hydrogen phthalate (KHP) standard solution. Background: Acid–Base Titrations When an acid reacts with a base, a neutralization reaction occurs. The H+ ions from the acid and the HO– ions from the base combine to form water and are therefore neutralized. The other product of reaction is a salt. For example, hydrochloric acid reacts...
Valence Far Charge EACH atom within Lewis Structure Flered molecular Geometry of central atoms) Molecules SO SO Structure 2 SO, D2. How is resonance shown in the three structures of SO,? Online this structure is often shown with 3 double bonds to each oxygen, explain why this is incorrect? Electronie and molecular Geometry of Fermal Charge EACH bom withia Lewis Structure ΗΝΟ, ΗΝΟ, D3. In the above structure, nitrogen is the central atoms but hydrogen is NOT bonded directly to...
please show all work thank you im advance
Experiment #5-Acidity and Electrostatic Potential Experiment #5: Correlation of Acidity with Electrostatic Potential This Experiment is Done in Groups of 2 Background: his laboratory experiment is focused on theoretically predicting the acidity of several molecules. A software package called "Spartan" was used to predict the structure electrostatic potential of each molecule. The electrostatic potential at a point P is defined as the Coulomb energy of interaction between the electron-charge cloud of the...
identify which compound is more acidic and explain your choice. or each of the following compounds, Make sure you include structures of these which compounds in your answers ounds, 1. F (e) 24-Dimethy-3,5-hepanedione or 4, 4-Dimethy)-3,5-heptanedione (b) 1.2-Cyclopentanedione or 1,3-cyclopentanedione 2. When 2-hepten-4-one is treated with LDA, a proton is removed from one of the gamma (z) positions. identily which gamma position is deprotonated, and explain why the y proton is the most acidie proton in the compound. 3. Rank...
Several reagents and several organic
structures are shown below. Construct a multistep synthetic route
from the reactant 2-methyl-1-butene to the product
3-bromo-2-methyl-2-butanol by dragging the appropriate pieces into
the bins. Note that each bin will hold only one item, and not every
given reagent or structure will be used.
HINT:
Start by locating the structures of
2-methyl-1-butene and 3-bromo-2-methyl-2-butanol and placing them
in their bins. Note that the final product is a vicinal halohydrin,
since it has halogen and hydroxyl...
6 (4 pts, total: 2 pts, each) For each of the following questions, circle the BEST a. Strongest Bronsted-Lowry acid HF HCI HBO HI b. Has the lowest pk. CH NH H2O Has 7. (4 pts total, 2 pts each) For each of the following molecular structures, circle the MOST acidic hydrogen. Note that lone pairs have been omitted for clarity. HH HHHH Horacaugh a HHH b Hн 8. (4 pts. total; 2 pts, each) in the space provided below,...
General Chemistry II Part 3. Now let's consider the effect of structure on acid-base properties: There are two main factors that determine whether a molecule containing X-H bond will behave as a Bronsted-Lowry acid and donate a proton: the strength of the bond and the polarity of the bond. On one hand, the stronger the X-H bond, the lower the molecule's tendency to donate the proton. On the other hand, the more polar the X-H bond, the higher the molecules...
please help
After answering these questions, enter your answers in Bb The system has been setup for 2 attempts. If for any reason, the system fails, write your answers on this page, tear out the page from the manual and give this to your TA before prelab lecture starts. You are allowed up to two paper submission per quarter. 1. What is the proper reading of the buret shown? Question 1 answers 20.5 ml 19.44 ml 19.5 ml 19.6 mL...
please help
4. For each pair of structures below circle the most relatively stable one. Show work by drawing relevant chair structures and/or Newman projections as needed) to clearly illustrate why. It is best practice here that only the most stable conformations for each compound are being compared in each set. For clarity. provide a few words that explain your analysis when comparing the illustrations. (12pts total for this problem) (a) ♡ va ♡ 5. (a) (3pts) Look up trans-decalin...
4. Consider phosphonic acid, an inorganic acid that has both the empirical and molecular formua HaPOs... a. (4 pts) Draw the most stable Lewis electron dot structure for HaPOs containing one double bond and no formal charges. Place your answer in the space provided. HaPOs with one double bond b. (3 pts) What is the orbital hybridization at phosphorus in your answer to part (a)? (4 pts) Draw the most stable Lewis electron dot structure for HaPOs containing no double...
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