For a crystalline salt, the anions, X, are cubic close packed; the cations, M, are found...
For a crystalline salt, the anions, X, are cubic close packed; the cations, M, are found in all of the octahedral holes. What is the coordination number of the cation, M? Enter your answer as an integer.
Homework Answers
answer :coordination number of metal =6
explanation :
X = anion = cubic close packed lattice
M = octahedar holes
metal with octahedral holes means it is surrounded by 6 anions .
so coordination number of metal = 6
coordination number of anion =6
Add Answer to:
For a crystalline salt, the anions, X, are cubic close packed;
the cations, M, are found...
52. The structure of a ternary salt consists of anions, X, arranged in a cubic close-packed...
52. The structure of a ternary salt consists of anions, X, arranged in a cubic close-packed array (as shown below) and cations A and B (the cations are not shown). Cation A occupies all of the octahedral holes in the lattice. What fraction of the tetrahedral holes must be occupied by cation, B, to give an emprical formula of ABX? A. All of them B. one-half C. one-fourth D. one-eighth
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...
Determine the formulas of the componds produced by (a) filling half the tetrahedral holes with cation...
Determine the formulas of the componds produced by (a) filling half the tetrahedral holes with cation M ina hexagonal close-packed array of aninons X; (b) filling half the octahedral holes with cations M in a cubic close-packed array of anions X.
Question 1: Crystal Lattices Hexagonal Close Packed (HCP) Cubic Close Packed (CCP) Sodium Chloride Zinc Blende...
Question 1: Crystal Lattices Hexagonal Close Packed (HCP) Cubic Close Packed (CCP) Sodium Chloride Zinc Blende Wurtzite a) Draw the structures of all close packing and ionic lattices above. b) Identify the presence of octahedral and tetrahedral holes between layers. How many of each type of "hole" surround each atom in the lattice? c) Identify the layers of each structure in the drawings. d) Write an account of close packed lattice structures. e) Note the similarities and differences between Hexagonal...
1. Outline the similarities and differences between cubic and hexagonal close-packed arrangements of spheres, paying particular...
1. Outline the similarities and differences between cubic and hexagonal close-packed arrangements of spheres, paying particular attention to (a) coordination numbers, (b) interstitial holes and (c) unit cells 2. What do you understand by the "band theory of metals'?
Metal x crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell...
Metal x crystallizes in a face-centered cubic (close-packed)
structure. The edge length of the unit cell was found by x-ray
diffraction to be 383.9 pm. The density of x is 20.95 . Calculate
the mass of an x atom, and use Avogadro’s number to calculate the
molar weight of
Metal X crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell was found by x-ray diffraction to be 383.9 pm. The density of X is 20.95...
Testing for Cations and Anions - Lab 6 B. Tests for Negative lons (Anions) Procedure Observations...
Testing for Cations and Anions - Lab 6 B. Tests for Negative lons (Anions) Procedure Observations Observations for unknown BI Chloride test ar B.2 Sulfate test SO? B.3 Phosphate test PO 3.4 Carbonate test 00 Identification of the negative ion in the unknown solution From your test results, what negative ion (anion) is present in your unknown? Explain your choice. C. Writing the Formula of Your Unknown Salt Unknown sample number C. Cation Name Name Anion C.2 Formula of the...
Be sure to answer all parts. Calculate the number of cations and anions in each of...
Be sure to answer all parts. Calculate the number of cations and anions in each of the following compounds. Enter your answers in scientific notation. (a) 7.73 g of KBr: x 10 cations anions (b) 4.61 g of Na,so: anions (c) 6.16 g of Ca3(PO4)2: anions
Simple Cubic (SC) Structure 1. Write the Miller indices for the family of close-packed directions in...
Simple Cubic (SC) Structure 1. Write the Miller indices for the family of close-packed directions in the SC crystal. <hkl>= 2. Write the expression for theoretical density of a material with SC structure in terms of atomic radius (R), atomic weight (A), and Avogadro's number (NA). (Show your work.) 3. Calculate the planar density for the most densely packed SC planes in terms of atomic radius (R). (Show your work.) PD Body-Centered Cubic (BCC) Structure 4. How many non-parallel close-packed...
Answer question 23-25 The unit cell for HCP is not a cube. This structure is made...
Answer question 23-25
The unit cell for HCP is not a cube. This structure is made by placing one flat layer of a close packed hexagon arrangement of seven spheres on top of the holes in another layer, a third layer directly above first layer, and so on. This layering is referred to as A,B,A,B. Hold the model up to the light and note the tunnels that pass straight through the structure. See the figure below. 23. What is the...
52. The structure of a ternary salt consists of anions, X, arranged in a cubic close-packed array (as shown below) and cations A and B (the cations are not shown). Cation A occupies all of the octahedral holes in the lattice. What fraction of the tetrahedral holes must be occupied by cation, B, to give an emprical formula of ABX? A. All of them B. one-half C. one-fourth D. one-eighth
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...
1. Outline the similarities and differences between cubic and hexagonal close-packed arrangements of spheres, paying particular attention to (a) coordination numbers, (b) interstitial holes and (c) unit cells 2. What do you understand by the "band theory of metals'?
Metal x crystallizes in a face-centered cubic (close-packed)
structure. The edge length of the unit cell was found by x-ray
diffraction to be 383.9 pm. The density of x is 20.95 . Calculate
the mass of an x atom, and use Avogadro’s number to calculate the
molar weight of
Metal X crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell was found by x-ray diffraction to be 383.9 pm. The density of X is 20.95...
Testing for Cations and Anions - Lab 6 B. Tests for Negative lons (Anions) Procedure Observations Observations for unknown BI Chloride test ar B.2 Sulfate test SO? B.3 Phosphate test PO 3.4 Carbonate test 00 Identification of the negative ion in the unknown solution From your test results, what negative ion (anion) is present in your unknown? Explain your choice. C. Writing the Formula of Your Unknown Salt Unknown sample number C. Cation Name Name Anion C.2 Formula of the...
Be sure to answer all parts. Calculate the number of cations and anions in each of the following compounds. Enter your answers in scientific notation. (a) 7.73 g of KBr: x 10 cations anions (b) 4.61 g of Na,so: anions (c) 6.16 g of Ca3(PO4)2: anions
Simple Cubic (SC) Structure 1. Write the Miller indices for the family of close-packed directions in the SC crystal. <hkl>= 2. Write the expression for theoretical density of a material with SC structure in terms of atomic radius (R), atomic weight (A), and Avogadro's number (NA). (Show your work.) 3. Calculate the planar density for the most densely packed SC planes in terms of atomic radius (R). (Show your work.) PD Body-Centered Cubic (BCC) Structure 4. How many non-parallel close-packed...
Answer question 23-25
The unit cell for HCP is not a cube. This structure is made by placing one flat layer of a close packed hexagon arrangement of seven spheres on top of the holes in another layer, a third layer directly above first layer, and so on. This layering is referred to as A,B,A,B. Hold the model up to the light and note the tunnels that pass straight through the structure. See the figure below. 23. What is the...
Most questions answered within 3 hours.
-
1. When balancing the equation H2SO4 (aq) + NaOH (aq) →
Na2SO4(aq) + H2O(aq), would you...
asked 1 minute ago -
Which drug candidates are most effective at docking with COX1
and COX2 respectively?
COX1: flurbiprofen, COX2:...
asked 7 minutes ago -
You place the left end of the rod on a fulcrum, and hang the
right end...
asked 8 minutes ago -
Push an object with half the mass of the cabinet with a force of
200 N....
asked 14 minutes ago -
Differentiate the application and functions of
electronic medical records, electronic health records and
electronic personal health...
asked 15 minutes ago -
What is the height of the tsunami in a water depth of 10 m
assuming the...
asked 26 minutes ago -
A χ2 goodness-of-fit test was used to test the hypothesis that
students at a local university...
asked 29 minutes ago -
Problem 1
You have a loan outstanding. It requires making three annual
payments at the end...
asked 31 minutes ago -
A database imposes several requirements on the structure of
tables. Which of the following is not...
asked 31 minutes ago -
A
fragment of DNA is amplified from a single molecule of template DNA
for 22 cycles....
asked 42 minutes ago -
Smartphones: A poll agency reports that 32% of teenagers aged
12-17 own smartphones. A random sample...
asked 49 minutes ago -
blood glucose level for obese patient population have
a mean of 100 with a standard deviation...
asked 1 hour ago