Homework Answers
Br is a weak field ligand hence it forms high spin complex
MnBr2 : Mn is in +2 oxidation state and Mn2+ is d5 with configuration t2g3 eg2 since both the orbitals are symmetrically filled hence it would be perfectly octahedral with equal Mn-Br bond length
whereas CrBr2 is Cr2+ is having d4 ion with t2g3eg1 configuration in which eg set is unsymmetrically filled due to which Jahn Teller distortion takes place and the geometry will not be perfectly octahedral due to which we get unequal bond length
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5. Both CrBr2 and MnBr2 have a central metal cation surrounded by six bromide anions. One...
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions....
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions. a) What is the electrostatic valance of the of each C-O bond? b) How many of these bonds can each O make? c) How much charge does the O anion have left for bonding if it is bonded to one C4+*? d) The Fe2* cations in siderite are coordinated by 6 oxygen anions. What is the electrostatic valence of the Fe2+-O bonds? In siderite,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown centained only sulfate ion. Which test would most quickly 3. Consider each set of results below which were carried out on a solution containing either (1)one of the six anions studied in this experiment, or (2) none...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown contained only sulfate ion. Which test would most quickly (that is, in the fewest steps) confirm your hypothesis? Explain. Consider each set of results below which were carried out on a solution containing either (1)one of the...
Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a...
Two metal rods of equal length-one aluminum, the other stainless steel-are connected in parallel with a temperature of 22.0 ∘ C at one end and 130 ∘ C at the other end. Both rods have a circular cross section with a diameter of 2.50 cm. Part A : Determine the length the rods must have if the combined rate of heat flow through them is to be 30.0 J per second.Please express answer in meters. Part B: If the length...
procedure and test result QUESTIONS 1. The first line in the procedure states that all of...
procedure and test result
QUESTIONS 1. The first line in the procedure states that all of the cations have either nitrate or chloride as the counter lon. Explain why all of the cations have either nitrate ion or chloride ion as the counter ion. Why are other anions not used? 2. The second line in the procedure states that all of the anions have either sodium or potassium ion as the counter ion. Explain why all the anions have sodium...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
You have the six pieces of metal listed below, plus a beaker of water containing 300...
You have the six pieces of metal listed below, plus a beaker of water containing 300 g of water. The water temperature is 21.0°C and its specific heat is 4.184 J/g.°C. Metal Specific heat (J/g.°C) Mass (8) 1. AI 0.9002 100.0 2. Al 0.9002 50.0 3. Au 0.1289 100.0 4. Au 0.1289 50.0 5. Zn 0.3860 100.0 6. Zn 0.3860 50.0 In an experiment, you are asked to select one piece of metal and heat it to 100.0 °C, and...
Post-lab question Part A 1. Metallic sodium forms a body centered cubic crystal. Why would the...
Post-lab question Part A 1. Metallic sodium forms a body centered cubic crystal. Why would the water displacement method used in part A not be suitable to determine the density of sodium? (Hint: watch the following video to help you answer this question: https://www.youtube.com/watch?v=18tOtZKpi04) 2. Calculate the density of sodium. (The radius of a sodium atom is 186pm) Post-lab Question Part B: Consider cubic array iodide ions (r =220pm) in which the anions are touching along the face of the...
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...
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....
2. In Sidente FeCo,, C4+ cations in the carbonate groups are surrounded by three O2. anions. a) What is the electrostatic valance of the of each C-O bond? b) How many of these bonds can each O make? c) How much charge does the O anion have left for bonding if it is bonded to one C4+*? d) The Fe2* cations in siderite are coordinated by 6 oxygen anions. What is the electrostatic valence of the Fe2+-O bonds? In siderite,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown centained only sulfate ion. Which test would most quickly 3. Consider each set of results below which were carried out on a solution containing either (1)one of the six anions studied in this experiment, or (2) none...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown contained only sulfate ion. Which test would most quickly (that is, in the fewest steps) confirm your hypothesis? Explain. Consider each set of results below which were carried out on a solution containing either (1)one of the...
procedure and test result
QUESTIONS 1. The first line in the procedure states that all of the cations have either nitrate or chloride as the counter lon. Explain why all of the cations have either nitrate ion or chloride ion as the counter ion. Why are other anions not used? 2. The second line in the procedure states that all of the anions have either sodium or potassium ion as the counter ion. Explain why all the anions have sodium...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
You have the six pieces of metal listed below, plus a beaker of water containing 300 g of water. The water temperature is 21.0°C and its specific heat is 4.184 J/g.°C. Metal Specific heat (J/g.°C) Mass (8) 1. AI 0.9002 100.0 2. Al 0.9002 50.0 3. Au 0.1289 100.0 4. Au 0.1289 50.0 5. Zn 0.3860 100.0 6. Zn 0.3860 50.0 In an experiment, you are asked to select one piece of metal and heat it to 100.0 °C, and...
Post-lab question Part A 1. Metallic sodium forms a body centered cubic crystal. Why would the water displacement method used in part A not be suitable to determine the density of sodium? (Hint: watch the following video to help you answer this question: https://www.youtube.com/watch?v=18tOtZKpi04) 2. Calculate the density of sodium. (The radius of a sodium atom is 186pm) Post-lab Question Part B: Consider cubic array iodide ions (r =220pm) in which the anions are touching along the face of the...
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...
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....
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