Homework Answers
All compounds have tendency to donate lone pair of electrons ,hence they are basic in nature.
As base is a substance which has tendency to donate lone pair of electrons.
Secondary amine is more basic than tertiary and than primary amines.
In tertiary amines due to steric hindrance ability to donate lone pair becomes difficult hence secondary amines are more basic than tertiary .
First two compounds have hydrogen atom on elctronegative nitrogen atom ,which can form bond with anther nitrogen atom.
But tertiary amines does not have any hydrogen atom on nitrogen atom ,hence it doesn't follow requirements for hydrogen bonding.
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Webecreases 2. Given three compounds CH CH.NH (CH,CH, NH, and (CH,CH),N central atom in each compound):...
9. The hybridization of the central nitrogen atom in the molecule N O is (A) sp (B) (C) sp (D) spid (Esp' 10. What...
9. The hybridization of the central nitrogen atom in the molecule N O is (A) sp (B) (C) sp (D) spid (Esp' 10. What bond angles are predicted by VSEPR theory for the F-P-F bonds in PE 32 (Select all correct answers.) A 90 B . 109.5° C. 120° D. 180°E None of these 11. Which of the following molecules has polar bonds but is a nonpolar molecule! (Select all correct answers.) (A) CO (B) BF, (C) CCI (D) Xel....
390 CHAPTER Molecular Geometry and Bonding Theories y pre which HS he a central atom: (a.ORG...
390 CHAPTER Molecular Geometry and Bonding Theories y pre which HS he a central atom: (a.ORG 9.23 Give the electron domain and molecular peometries of a mol- ecule that has the following electron domains on its central atom: (a) four bonding domains and no nonbonding domains (b) three bonding domains and two sonbonding domains (c) five bonding domains and one monbonding domain. (d) four bonding domains and two nonbonding domains. tries of a 9.30 Give approximate values for the indicated...
please help in all sections asap! The following two drawings are resonance structures of one compound....
please help in all sections asap!
The following two drawings are resonance structures of one compound. a-o But the following two drawings are not resonance structures Not resonance structures They are, in fact, two different compounds. Choose the correct explanation(s). Select all that apply. Benzene does not have three C-C single bond and three C-C double bonds. In fact, all six C-C bonds of the ring have the same bond order and same length. Benzene have three C- single bond...
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the...
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your answer. V (b) CHa boils at 111 k while Cola boils at 350 K. Does this data support or contradict your answer to part (a)? Briefly explain eng point 14. Why does ethane (CH) have a higher boiling point (184 K) than methane (CH 111 K)? 163 Model III: Another set of boiling point data Substance Boiling point Boiling point HF Substance HO H...
1. Check off (V) all the forces that apply to each of the following compounds Compound...
1. Check off (V) all the forces that apply to each of the following compounds Compound Intermolecular Force London Forces Hydrogen Bonding Dipole - Dipole BrF Cl2 H.S 2. In the liquid state, disruptive forces are a. roughly of the same magnitude as cohesive forces b. very weak compared to cohesive forces c. dominant over cohesive forces d. None of these 3. Between CIF and ClBr which compound would have a large boiling point? Explain the reason for your choice....
please answer all Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A,...
please answer all
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol Question 24 1.5 pts Which of the following compounds would have...
Prior to doing the experiment, Procedure section). The name and formula are given for each compound....
Prior to doing the experiment, Procedure section). The name and formula are given for each compound. Draw the structure for each compound showing ALL bo type possi the complete a table like the one below in your notebook (Include at the end of the nds. Next, examine each molecule for the presence of intermolecular forces, including the strongest ible for covalent molecules-hydrogen bonding. Leave room in your notebook to show all work, determination of polar or nonpolar bonds using electronegativity...
9. A mixture (solution) of 3 different liquid compounds is formed. Each compound has the same...
9. A mixture (solution) of 3 different liquid compounds is formed. Each compound has the same condensed formula of C4H10O. Separate analyses of these compounds confirmed that none of the compounds has branching of C’s from the main chain of attached C atoms. Also one of the compounds experiences a weaker interparticle force as its dominant force than the other two. (a) Draw 3 possible preferred Lewis structures consistent with the above formula and information. It is desired to separate...
1. What is the purpose of column chromatography 2. What is the stationary phase? Mobile phase?...
1. What is the purpose of column chromatography 2. What is the stationary phase? Mobile phase? 3. What is the purpose of the cotton (glass wool) in column chromatography? 4. What is the purpose of the sand? 5. Why is it important to prevent the column from drying? 6. What can happen if you disrupt your even layer of silica gel? 7. Which compounds come off the column first, polar or nonpolar? 8. Keyon synthesized acetylferrocene (orange) in organic chemistry...
9. The hybridization of the central nitrogen atom in the molecule N O is (A) sp (B) (C) sp (D) spid (Esp' 10. What bond angles are predicted by VSEPR theory for the F-P-F bonds in PE 32 (Select all correct answers.) A 90 B . 109.5° C. 120° D. 180°E None of these 11. Which of the following molecules has polar bonds but is a nonpolar molecule! (Select all correct answers.) (A) CO (B) BF, (C) CCI (D) Xel....
390 CHAPTER Molecular Geometry and Bonding Theories y pre which HS he a central atom: (a.ORG 9.23 Give the electron domain and molecular peometries of a mol- ecule that has the following electron domains on its central atom: (a) four bonding domains and no nonbonding domains (b) three bonding domains and two sonbonding domains (c) five bonding domains and one monbonding domain. (d) four bonding domains and two nonbonding domains. tries of a 9.30 Give approximate values for the indicated...
please help in all sections asap!
The following two drawings are resonance structures of one compound. a-o But the following two drawings are not resonance structures Not resonance structures They are, in fact, two different compounds. Choose the correct explanation(s). Select all that apply. Benzene does not have three C-C single bond and three C-C double bonds. In fact, all six C-C bonds of the ring have the same bond order and same length. Benzene have three C- single bond...
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your answer. V (b) CHa boils at 111 k while Cola boils at 350 K. Does this data support or contradict your answer to part (a)? Briefly explain eng point 14. Why does ethane (CH) have a higher boiling point (184 K) than methane (CH 111 K)? 163 Model III: Another set of boiling point data Substance Boiling point Boiling point HF Substance HO H...
1. Check off (V) all the forces that apply to each of the following compounds Compound Intermolecular Force London Forces Hydrogen Bonding Dipole - Dipole BrF Cl2 H.S 2. In the liquid state, disruptive forces are a. roughly of the same magnitude as cohesive forces b. very weak compared to cohesive forces c. dominant over cohesive forces d. None of these 3. Between CIF and ClBr which compound would have a large boiling point? Explain the reason for your choice....
please answer all
Question 25 3.5 pts A 0.258-g sample of a pure triprotic acid, H3A, (where A is the generic anion of the acid), was dissolved in water and titrated with 0.150 M barium hydroxide solution. The titration required 13.9 mL of the base to reach the equivalence point. What is the molar mass of the acid ? 227 g/mol 82.5 g/mol 371 g/mol 124 g/mol 186 g/mol Question 24 1.5 pts Which of the following compounds would have...
Prior to doing the experiment, Procedure section). The name and formula are given for each compound. Draw the structure for each compound showing ALL bo type possi the complete a table like the one below in your notebook (Include at the end of the nds. Next, examine each molecule for the presence of intermolecular forces, including the strongest ible for covalent molecules-hydrogen bonding. Leave room in your notebook to show all work, determination of polar or nonpolar bonds using electronegativity...
1. What is the purpose of column chromatography 2. What is the stationary phase? Mobile phase? 3. What is the purpose of the cotton (glass wool) in column chromatography? 4. What is the purpose of the sand? 5. Why is it important to prevent the column from drying? 6. What can happen if you disrupt your even layer of silica gel? 7. Which compounds come off the column first, polar or nonpolar? 8. Keyon synthesized acetylferrocene (orange) in organic chemistry...
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