Part A
Which has a dipole moment?
CO2 |
SO42– |
SO2 |
CO32– |
part B
When cubic unit cells stack together, how many unit cells share a common corner?
2 |
4 |
6 |
8 |
Here is the Solution:
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Part A Which has a dipole moment? CO2 SO42– SO2 CO32– part B When cubic unit...
When cubic unit cells stack together, how many unit cells share a common corner? A. 8 B.4. C.6 D.2
cubic unit cell length of a side of the cubic UNIT CELL CUBICS MODE 1/8 of an atom remetallic radius of an atom Primitive Cubic The ma ching ang antage = ven Face-Centered Cubic (aka Cubic Close-Packed) The atoms are touching along a face diagonal 1/8 of an atom 1/2 of an atom of an atom Body-Centered Cubic The atoms are touching along a body diagonal. 1/8 of an atom whole atom KEY QUESTIONS What are the names of the...
of the cubic unit Cell UNIT CEL CURICS KEY 1. W MODEL a length of a side of the remete radius of an atom Primitive Cubic 2. W its The aims a fouching ang anaye Face-Centered Cubic (aka Cubic Close-Packed) The atoms are touching along a face diagonal 1/8 of an atom Body-Centered Cubic The atoms are fouching along a body diagonal 1/8 of an atom whole atom Chapter 11: Phases of Matter KEY QUESTIONS 1. What are the nar...
Question 8 (4 points) A compound made of elements A and B, has a cubic unit cell. There is an A atom at each corner of the cube and an A atom at the center of each face of the cube. There are four B atoms that lie entirely within the unit cell. Based on this information, the empirical formula for the compound is: ОАВз AB O A₂B AB2 , A₂B2
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CsCl erystallizes in a unit cell that contains a Cst ion at the center of a cube and a Clion at each corner. The unit cell of CsCl is 5. A) close packed B) body-centered cubic C) face-centered cubic D) amorphous E) primitive cubic 6. What fraction of the volume of each corner atom is actually within the volume of a face- centered cubic unit cell? A) 1...
(33) Which of the following molecules has a dipole moment equal to 0? A) SIH4 B) HO C) CH F2 (tetrahedral) D) CBrC12F (34) Which one of the following molecules is overall nonpolar? A) NH3 B) OF 2 C) CH2C1 D) H2O E) BeCl2
1. Which compound below has the largest dipole moment? A. CF2Cl2 D. CF4 B. CH2Cl2 E. CH Br2 C. CHF2 2. Which molecule below is polar? A. CF4 D. CS2 B. SiH4 E. CO2 C. CH2Cl2 3. What is the bond order of O2? A. 0 D. 3 B. 1 E. 1.5 C. 2 4. Which statement about a balanced chemical reaction equation is always correct? A. The total number of moles of the products equals the total number of...
Part B Unit Two Homework How many moles of CO are produced when 2.2 moles Creacts? Express your answer using two significant figures. ANSWER moles Part C How many moles of SO2 are required to produce 0.55 mole CS2? Express your answer using two significant figures. ANSWER moles Part D How many moles of CS2 are produced when 3.0 moles C reacts? Express your answer using two significant figures. ANSWER: moles Part B 4Al(s) + 302(g) + 2Al2O3(s) Given 25.0...
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A compound made of elements A and B, has a cubic unit cell. There is an A atom at each corner of the cube and an A atom at the center of each face of the cube. There are eight B atoms that lie entirely within the unit cell. Based on this information, the empirical formula for the compound is: AB2 AB3 AB A₂B 1A4B2 Question 9 (4 points) Which of the following increases the solubility...
Answer all parts. (a) Sketch several H20 molecules interacting in the solid phase. Briefly explain why the [6 marks] addition of NaCI lowers the melting point of H20 (b) CO2 is a molecule that is not expected to have a dipole moment. Why? Your solution [2 marks] (c) When vibrationally excited, CO2 shows a slight dipole that increases with vibrational [5 marks] should make use of simple, well-labelled diagrams. excitation. Why? Your solution should make use of simple, well-labelled diagrams...