Homework Answers
In formaldehyde, electronegative element oxygen have relatively
low lying orbitals (2Pz orbital of oxygen). Because of its lower
energy, the * orbital is a
better acceptor of electrons from the HOMO of attacking nucleophile
than LUMO of the ethene.
The unequal electronegativities of the oxygen and carbon atoms
also distort electron distribution in the molecular
orbital.
In contrast to the symmetrical distribution in ethene, the
formaldehyde molecular orbital
has a higher atomic coefficient at oxygen. This results in a net
positive charge on the carbon atom, which is favorable for an
approach by a nucleophile.
Therefore carbon atom in CH2O to have more partial positive charge compared to ethene, C2H4.
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3. The MO diagram below is that of only the n-electron system of the molecule CH2O....
13. (14 pts) MO Theory Draw the complete (core and valence) molecular orbital energy level diagram...
13. (14 pts) MO Theory Draw the complete (core and valence) molecular orbital energy level diagram for the homonuclear diatomic molecule Be2. Use standard MO symbols to label the energy levels (That is: o, o, , or n*, as needed, with subscripts indicating which atomic orbitals formed them.) a. Sketch the molecular orbital formed when two 2p orbitals, one each on each Be atom, overlap to form a o antibonding MO b. Using your MO energy level diagram in (a),...
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to...
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to bond to iron in hemoglobin is the reason that CO is so toxic. The bond carbon monoxide forms to metals is through the carbon atom: M -C= 0 a. On the basis of electronegativities, would you expect the carbon atom or the oxygen atom to form bonds to metals? b. Assign formal charges to the atoms in CO. Which atom would you expect to...
Fill the MO diagram of the molecule of CO 30* 17* 17* 30 1π 1π 20*...
Fill the MO diagram of the molecule of CO 30* 17* 17* 30 1π 1π 20* 2s 20 2s How many electrons are in the 11t* orbitals of the MO diagram? Select one: O al 2ok 2s 20 2s How many electrons are in the 11t* orbitals of the MO diagram? Select one: b. 2 ооооо с. 3 d. 0 е. 4 In the following molecular orbital diagram of HCl: MO diagram for HCI molecule 0 3pz H1s Tin Tnb...
1) 2) 3) 4) 5) Use the molecular orbital energy diagram below to answer the questions...
1)
2)
3)
4)
5)
Use the molecular orbital energy diagram below to answer the questions about bond order for the negative ion By. Number of Bonding Number of Antibonding B2 Valence Electrons Valence Electrons Bond Order This corresponds to: A. Single bond B. Double bond C. Triple bond D. Half of a bond E. Between a single and double bond F. Between a double and a triple bond G. No bond, B2" does not form. boron MO's boron 2p...
questions marked e. Tee die de u n C-N DUMU uisthus Uryan Jan C mor ecule...
questions marked
e. Tee die de u n C-N DUMU uisthus Uryan Jan C mor ecule is nonlinear. Of all the resonance structures you drew for this molecule, which is the most important? 16. Represent the bonding in each molecule or ion by drawing the orbitals (hybridized and unhybrid- ized) of each atom in the bond. Label the o and it bonds and label each bond by the orbitals that it is made from. For instance, the C-H bond in...
Chemistry 2A Lab 11: Molecular Geometry Molecule or Ion Lewis Diagram Central Molecular Bond Atom Geometry Polari...
Chemistry 2A Lab 11: Molecular Geometry Molecule or Ion Lewis Diagram Central Molecular Bond Atom Geometry Polarity Lone Pairs Symmetry Molecular Polarity Atom Bonding Pairs 13. IO2-1 14. SO42 15. HCN. 16. NO; To determine overall molecular polarity follow the procedure below: 1. Identify the central atom. The central atom is the least electronegative element. Hydrogen is not a central atom. 2. Place all other atoms around the central atom. 3. Calculate the total number of valence electrons. Include the...
please help in all sections asap!! Which type of electron is the highest in energy? An electron in an an...
please help in all sections asap!!
Which type of electron is the highest in energy? An electron in an anti-bonding molecular orbital. An electron in a bonding molecular orbital. An electron in an atomic orbital. O A non-bonding electron. Choose a systematic name for the following compound. 1,4 dimethyl ethyl benzene 1,4 diethyl methyl benzene 1,4-diisopropylbenzene 1,4 dipropylbenzene Answer the following questions. -OR Would you expect the above compound to be aromatic? Yes No Choose the correct explanations for the...
10) Consider the following balanced e following balanced reaction. How many grams of water are required...
10) Consider the following balanced e following balanced reaction. How many grams of water are required to form 75.9 g of HNO3? that there is excess NO present. The molar masses are as follows: H2O - 18.02 g/mol, HNO3 - 63.02 g/mol. A) 26.5 g H20 3 NO2(g) + H2O(1) -- 2 HNO3(aq) + NO(g) B ) 38.0 g H20 C) 10.9 g H20 D) 43.4 g H20 E) 21.7 g H20 11) A physical change A) occurs when iron...
_ and _ bond(s) in the H2C-CH2 molecule. 25) There are A) 3 and 2 B)...
_ and _ bond(s) in the H2C-CH2 molecule. 25) There are A) 3 and 2 B) 3 and 4 C) 4 and 3 D) 2 and 3 E) 5 and 1 is tetrahedral 26) The electron-domain geometry of A) CBr4 B) PH3 C) CCl2Br2 D) XeF4 E) all of the above except XeF4 27) GeF3H is formed from GeH4 and GeF4 in the combination reaction: GeH4 + 3GeF4 + 4GeF3H If the reaction yield is 92.6%, how many moles of...
Lab Section 1 2 3 4 5 6 7 8 9 Report: Quantum Numbers Assigning Quantum...
Lab Section 1 2 3 4 5 6 7 8 9 Report: Quantum Numbers Assigning Quantum Numbers 1. For each element, complete the following tables Write the ground state condensed electron configuration, draw the energy level orbital diagram (see partial example with Na), and write the quantum numbers for the last electron in the atom. Element Me Condensede continuration Energy level Cuantum numbers Element Condensede configuration Energy level orbital diagram Quantum numbers (laste) Flement Condensede Energy level orbital diagram Quantum...
13. (14 pts) MO Theory Draw the complete (core and valence) molecular orbital energy level diagram for the homonuclear diatomic molecule Be2. Use standard MO symbols to label the energy levels (That is: o, o, , or n*, as needed, with subscripts indicating which atomic orbitals formed them.) a. Sketch the molecular orbital formed when two 2p orbitals, one each on each Be atom, overlap to form a o antibonding MO b. Using your MO energy level diagram in (a),...
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. Its ability to bond to iron in hemoglobin is the reason that CO is so toxic. The bond carbon monoxide forms to metals is through the carbon atom: M -C= 0 a. On the basis of electronegativities, would you expect the carbon atom or the oxygen atom to form bonds to metals? b. Assign formal charges to the atoms in CO. Which atom would you expect to...
Fill the MO diagram of the molecule of CO 30* 17* 17* 30 1π 1π 20* 2s 20 2s How many electrons are in the 11t* orbitals of the MO diagram? Select one: O al 2ok 2s 20 2s How many electrons are in the 11t* orbitals of the MO diagram? Select one: b. 2 ооооо с. 3 d. 0 е. 4 In the following molecular orbital diagram of HCl: MO diagram for HCI molecule 0 3pz H1s Tin Tnb...
1)
2)
3)
4)
5)
Use the molecular orbital energy diagram below to answer the questions about bond order for the negative ion By. Number of Bonding Number of Antibonding B2 Valence Electrons Valence Electrons Bond Order This corresponds to: A. Single bond B. Double bond C. Triple bond D. Half of a bond E. Between a single and double bond F. Between a double and a triple bond G. No bond, B2" does not form. boron MO's boron 2p...
questions marked
e. Tee die de u n C-N DUMU uisthus Uryan Jan C mor ecule is nonlinear. Of all the resonance structures you drew for this molecule, which is the most important? 16. Represent the bonding in each molecule or ion by drawing the orbitals (hybridized and unhybrid- ized) of each atom in the bond. Label the o and it bonds and label each bond by the orbitals that it is made from. For instance, the C-H bond in...
Chemistry 2A Lab 11: Molecular Geometry Molecule or Ion Lewis Diagram Central Molecular Bond Atom Geometry Polarity Lone Pairs Symmetry Molecular Polarity Atom Bonding Pairs 13. IO2-1 14. SO42 15. HCN. 16. NO; To determine overall molecular polarity follow the procedure below: 1. Identify the central atom. The central atom is the least electronegative element. Hydrogen is not a central atom. 2. Place all other atoms around the central atom. 3. Calculate the total number of valence electrons. Include the...
please help in all sections asap!!
Which type of electron is the highest in energy? An electron in an anti-bonding molecular orbital. An electron in a bonding molecular orbital. An electron in an atomic orbital. O A non-bonding electron. Choose a systematic name for the following compound. 1,4 dimethyl ethyl benzene 1,4 diethyl methyl benzene 1,4-diisopropylbenzene 1,4 dipropylbenzene Answer the following questions. -OR Would you expect the above compound to be aromatic? Yes No Choose the correct explanations for the...
10) Consider the following balanced e following balanced reaction. How many grams of water are required to form 75.9 g of HNO3? that there is excess NO present. The molar masses are as follows: H2O - 18.02 g/mol, HNO3 - 63.02 g/mol. A) 26.5 g H20 3 NO2(g) + H2O(1) -- 2 HNO3(aq) + NO(g) B ) 38.0 g H20 C) 10.9 g H20 D) 43.4 g H20 E) 21.7 g H20 11) A physical change A) occurs when iron...
_ and _ bond(s) in the H2C-CH2 molecule. 25) There are A) 3 and 2 B) 3 and 4 C) 4 and 3 D) 2 and 3 E) 5 and 1 is tetrahedral 26) The electron-domain geometry of A) CBr4 B) PH3 C) CCl2Br2 D) XeF4 E) all of the above except XeF4 27) GeF3H is formed from GeH4 and GeF4 in the combination reaction: GeH4 + 3GeF4 + 4GeF3H If the reaction yield is 92.6%, how many moles of...
Lab Section 1 2 3 4 5 6 7 8 9 Report: Quantum Numbers Assigning Quantum Numbers 1. For each element, complete the following tables Write the ground state condensed electron configuration, draw the energy level orbital diagram (see partial example with Na), and write the quantum numbers for the last electron in the atom. Element Me Condensede continuration Energy level Cuantum numbers Element Condensede configuration Energy level orbital diagram Quantum numbers (laste) Flement Condensede Energy level orbital diagram Quantum...
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