BeF2 has the same structure as SiO2, MgF2 is the same as rutile. (a) What are...
BeF2 has the same structure as SiO2, MgF2 is the same as rutile.
(a) What are the coordination numbers for Be and Mg?
(b) Do the structures of BeF2 and MgF2 look reasonable from a size perspective? Explain your answer.
Homework Answers
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BeF2 has the same structure as SiO2,
MgF2 is the same as rutile.
(a) What are...
9. Rhenium oxide has a cubic structure with the Re atoms sitting at the eight corners...
9. Rhenium oxide has a cubic structure with the Re atoms sitting at the eight corners of the cube and the (O) atoms half way along the 12 edges of the cube: (a) Draw the structure and place the Re and O atoms in their positions (b) What is the molecular formula? contributions Explain your answer using fractional Re and O (c) What is the oxidation number of Re? (d) How many formula units per cell?, (e) Is the unit...
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...
Using resonance structures as part of your answer, explain why Br in bromobenzene is: a. A...
Using resonance structures as part of your answer, explain why Br in bromobenzene is: a. A mild ring deactivator b. An o-, p-director. [Note: It is not enough to use resonance structures from part "a" to "prove" part "b". One must show that o-, p-attack is faster, i.e. has lower Ea (AGa) by actually showing an electrophile, e.g. the generalized E+, attacking at the o-, m-& p-positions and, using Hammond's Principle, explain why the o-, p-attacks are favored.] Explain what...
1. What is a structure based explanation for why acetamide is more stable than acetone. I'm...
1. What is a structure based explanation for why acetamide is
more stable than acetone. I'm pretty sure it has to do with
resonance.
2. also for question F im fairly sure it has to do with
resonance again but I not sure exactly why. could someone answer
and explain?
F. Draw the conjugate base for each compound below and draw the appropriate structures to explain the difference in N-H acidity pKa~9.5 pKa 16 N-H N-H
Thionyl chloride (SOCI,) is used to make novacaine. SOCI, has two resonance structures, one with a...
Thionyl chloride (SOCI,) is used to make novacaine. SOCI, has two resonance structures, one with a single bond between S and O and one with a double bond between S and O. 1. What is the central atom in this molecule? Explain your answer in 1-2 sentences. a. b. Draw the two resonance structures and assign a formal charge to each atom. Which of the two structures do you think contributes more to the resonance hybrid? Explain your answer in...
2. (3 points) In lab, you will form complexes using different ligands. Use your lab manual to identify and draw the str...
2. (3 points) In lab, you will form complexes using different ligands. Use your lab manual to identify and draw the structural formula (lewis formula) for the following: a. A charged monodentate ligand (answer cannot be a halide ion) b. A polydentate ligand c. The CO ligand, not used in the laboratory. Is it likely CO can form a coordinate covalent bond from more than one atom? Explain. NC CN Ni Geometry of Coordination Compounds A compounds geometry (i.e., how...
1. Niobium oxide has a crystal structure related to NaCl but without corner and center atoms...
1. Niobium oxide has a crystal structure related to NaCl but without corner and center atoms as shown in the model below (a) What is the empirical formula of this niobium oxide? Show in the space below how you arrived at your answer (b) How many formula units are contained within the unit cell (c) What are the oxidation states of Nb and O in this compound? Nb, Nb and 0? Nb (d) What is the coordination number
The ideal perovskite (ABO3) structure consists of AOs closest packed layers (ordered Am cations and O2-anions)...
The ideal perovskite (ABO3) structure consists of AOs closest packed layers (ordered Am cations and O2-anions) with B cations in ¼ of the octahedral holes. What pairs of charges are possible for A and B (there is more than one combination of charges)? For each pair, say which cation will likely sit in the closest packed layers and which will likely sit in the holes. Without specific examples of ions (e.g., Ca, Ti+), base your answer around the fact that...
Please take your time to answer all questions clearly and correctly... More Nomenclature and Symmetry Learning...
Please take your time to answer all questions clearly and
correctly...
More Nomenclature and Symmetry Learning Objectives: 1, Determine the rules for naming coordination compounds including special orientation of ligands 2. Use the rules to determine structures and formula from names and vice versa. 1. Isomerism in metal complex nomenclature: For the remainder of this assignment you can reference Figure 1 which contains a collection of metal complex structures with their chemical names and chemical compositions. Answer questions a -e....
9. Based on looking at your TLC plate taken during step 2 of Dilantin synthesis, answer...
9. Based on looking at your TLC plate taken during step 2 of Dilantin synthesis, answer the following questions (a) Which is more polar, benzoin or benzil? Circle Below. Benzoin Benzil (b) Now look at the structures of benzoin and benzil. Specifically explain why one of these compounds has a lower Rr value than the other. You must address structure in your answer. Explain in one or two sentences (c) How can you tell by TLC if your reaction went...
9. Rhenium oxide has a cubic structure with the Re atoms sitting at the eight corners of the cube and the (O) atoms half way along the 12 edges of the cube: (a) Draw the structure and place the Re and O atoms in their positions (b) What is the molecular formula? contributions Explain your answer using fractional Re and O (c) What is the oxidation number of Re? (d) How many formula units per cell?, (e) Is the unit...
Using resonance structures as part of your answer, explain why Br in bromobenzene is: a. A mild ring deactivator b. An o-, p-director. [Note: It is not enough to use resonance structures from part "a" to "prove" part "b". One must show that o-, p-attack is faster, i.e. has lower Ea (AGa) by actually showing an electrophile, e.g. the generalized E+, attacking at the o-, m-& p-positions and, using Hammond's Principle, explain why the o-, p-attacks are favored.] Explain what...
1. What is a structure based explanation for why acetamide is
more stable than acetone. I'm pretty sure it has to do with
resonance.
2. also for question F im fairly sure it has to do with
resonance again but I not sure exactly why. could someone answer
and explain?
F. Draw the conjugate base for each compound below and draw the appropriate structures to explain the difference in N-H acidity pKa~9.5 pKa 16 N-H N-H
Thionyl chloride (SOCI,) is used to make novacaine. SOCI, has two resonance structures, one with a single bond between S and O and one with a double bond between S and O. 1. What is the central atom in this molecule? Explain your answer in 1-2 sentences. a. b. Draw the two resonance structures and assign a formal charge to each atom. Which of the two structures do you think contributes more to the resonance hybrid? Explain your answer in...
2. (3 points) In lab, you will form complexes using different ligands. Use your lab manual to identify and draw the structural formula (lewis formula) for the following: a. A charged monodentate ligand (answer cannot be a halide ion) b. A polydentate ligand c. The CO ligand, not used in the laboratory. Is it likely CO can form a coordinate covalent bond from more than one atom? Explain. NC CN Ni Geometry of Coordination Compounds A compounds geometry (i.e., how...
1. Niobium oxide has a crystal structure related to NaCl but without corner and center atoms as shown in the model below (a) What is the empirical formula of this niobium oxide? Show in the space below how you arrived at your answer (b) How many formula units are contained within the unit cell (c) What are the oxidation states of Nb and O in this compound? Nb, Nb and 0? Nb (d) What is the coordination number
The ideal perovskite (ABO3) structure consists of AOs closest packed layers (ordered Am cations and O2-anions) with B cations in ¼ of the octahedral holes. What pairs of charges are possible for A and B (there is more than one combination of charges)? For each pair, say which cation will likely sit in the closest packed layers and which will likely sit in the holes. Without specific examples of ions (e.g., Ca, Ti+), base your answer around the fact that...
Please take your time to answer all questions clearly and
correctly...
More Nomenclature and Symmetry Learning Objectives: 1, Determine the rules for naming coordination compounds including special orientation of ligands 2. Use the rules to determine structures and formula from names and vice versa. 1. Isomerism in metal complex nomenclature: For the remainder of this assignment you can reference Figure 1 which contains a collection of metal complex structures with their chemical names and chemical compositions. Answer questions a -e....
9. Based on looking at your TLC plate taken during step 2 of Dilantin synthesis, answer the following questions (a) Which is more polar, benzoin or benzil? Circle Below. Benzoin Benzil (b) Now look at the structures of benzoin and benzil. Specifically explain why one of these compounds has a lower Rr value than the other. You must address structure in your answer. Explain in one or two sentences (c) How can you tell by TLC if your reaction went...
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