EBSD SEM TEM
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
Sructural and chemisorption properties of metallic surfaces and metallic overlayers
... field of electronic and atomic structure of adsorbate covered surfaces, two bimetallic systems (Pd on Al(110) and Ni on W(110)) and the hydrogen interaction with two clean metal surfaces (Nb(110) and W(110)) have been studied using various surface analytical techniques. The results for the Pd/Al sys ...
... field of electronic and atomic structure of adsorbate covered surfaces, two bimetallic systems (Pd on Al(110) and Ni on W(110)) and the hydrogen interaction with two clean metal surfaces (Nb(110) and W(110)) have been studied using various surface analytical techniques. The results for the Pd/Al sys ...
Chemistry Midterm Review 2006
... 1. The metric system is based on the power of ____________ 2. What is the basic metric unit of length, mass, and volume? 3. What is the SI unit for volume? 1cm3 = 1 ______ 4. Define volume. What type of lab equipment measures approximate volume? 5. What are the prefixes for the metric units and what ...
... 1. The metric system is based on the power of ____________ 2. What is the basic metric unit of length, mass, and volume? 3. What is the SI unit for volume? 1cm3 = 1 ______ 4. Define volume. What type of lab equipment measures approximate volume? 5. What are the prefixes for the metric units and what ...
MYP 10 PeriodicityWS
... 5(a) Draw a diagram to show the structure of sodium chloride. Explain, in terms of bonding, why sodium chloride has a high melting point. (b) Lithium reacts with water. Write an equation for the reaction and state two observations that could be made during the reaction. [SL paper 2, Nov 05] 6 (a) Fo ...
... 5(a) Draw a diagram to show the structure of sodium chloride. Explain, in terms of bonding, why sodium chloride has a high melting point. (b) Lithium reacts with water. Write an equation for the reaction and state two observations that could be made during the reaction. [SL paper 2, Nov 05] 6 (a) Fo ...
111 Exam II Outline
... change, ∆H, associated when gaseous cations and anions from a crystal: Na+(g) + Cl-(g) NaCl(s) ∆H = - 788KJ Since heat is always evolved in these processes, all lattice energies have a negative sign (Energy is lost). Lattice enrgies cannot be determined directly; therefore, the law of Hess is appl ...
... change, ∆H, associated when gaseous cations and anions from a crystal: Na+(g) + Cl-(g) NaCl(s) ∆H = - 788KJ Since heat is always evolved in these processes, all lattice energies have a negative sign (Energy is lost). Lattice enrgies cannot be determined directly; therefore, the law of Hess is appl ...
EXPERIMENT 4 Microwave Michelson Interferometer
... receiving antenna and diode are also only sensitive to radiation with an electric field oscillating in a vertical plane, perpendicular to the long dimension of its horn. When the two are pointing at one another, they are matched for polarization. If you pic ...
... receiving antenna and diode are also only sensitive to radiation with an electric field oscillating in a vertical plane, perpendicular to the long dimension of its horn. When the two are pointing at one another, they are matched for polarization. If you pic ...
Practice Test Packet
... [C] Any H+ ions will react with a conjugate base of a weak acid already in solution. [D] The solution will not change its pH very much even if a strong base is added. [E] all of these 21. A solution is prepare by mixing 50.0mL of 0.10 M Pb(NO3)2 with 50.0 mL of 1.0 M KCl. Calculate the concentration ...
... [C] Any H+ ions will react with a conjugate base of a weak acid already in solution. [D] The solution will not change its pH very much even if a strong base is added. [E] all of these 21. A solution is prepare by mixing 50.0mL of 0.10 M Pb(NO3)2 with 50.0 mL of 1.0 M KCl. Calculate the concentration ...
CHM 312
... ionic compounds, it forms oxoions eg TiO2-, VO2+-pale yellow, VO43-, CrO42--yellow and MnO4-intense purple. The colour is due to charge transfer eg for MnO4-, an electron is transferred from O to Mn, hence, O2- becomes O-,, reducing the oxidation state of Mn from +7 to +6. However, charge transfer r ...
... ionic compounds, it forms oxoions eg TiO2-, VO2+-pale yellow, VO43-, CrO42--yellow and MnO4-intense purple. The colour is due to charge transfer eg for MnO4-, an electron is transferred from O to Mn, hence, O2- becomes O-,, reducing the oxidation state of Mn from +7 to +6. However, charge transfer r ...
4-Physical Chemistry of SW-Equilibrium-ion
... times an activity coefficient (i), which is the fraction of the ion that is available to react at any given time ai = i * m i Thus an equilibrium constant should be expressed in terms of its activities (the effective concentrations): Keq = {Ca2+}1 {CO32-}1 / {CaCO3}1 or Keq = (Ca2+ mCa2+)1 (CO3 ...
... times an activity coefficient (i), which is the fraction of the ion that is available to react at any given time ai = i * m i Thus an equilibrium constant should be expressed in terms of its activities (the effective concentrations): Keq = {Ca2+}1 {CO32-}1 / {CaCO3}1 or Keq = (Ca2+ mCa2+)1 (CO3 ...
a from the quantum Hall effect
... The arrival time of cosmic rays will be random so they will simply contribute a flat background which is easy to subtract. The cosmic background level was measured by taking data at long times after the linac burst. The beam particles can create other states with short lifetimes. Their decays may tr ...
... The arrival time of cosmic rays will be random so they will simply contribute a flat background which is easy to subtract. The cosmic background level was measured by taking data at long times after the linac burst. The beam particles can create other states with short lifetimes. Their decays may tr ...
Name - TeacherWeb
... Molecules that have an odd number of total valence electrons cannot satisfy the octet rule. Some molecules that have an even number of valence electrons may also fail to follow the octet rule. After reading Lesson 8.2, answer the following questions. ...
... Molecules that have an odd number of total valence electrons cannot satisfy the octet rule. Some molecules that have an even number of valence electrons may also fail to follow the octet rule. After reading Lesson 8.2, answer the following questions. ...
chapter 7-Chemical Bonding
... • Covalent bonds are formed when atoms share electrons. It Occurs when the electronegativity difference between elements (atoms) is zero or relativity small (電負度幾乎沒差) • The bonds between atoms within a molecule (intramolecular bonds 分子內鍵結) are relatively strong, but the force of attraction between m ...
... • Covalent bonds are formed when atoms share electrons. It Occurs when the electronegativity difference between elements (atoms) is zero or relativity small (電負度幾乎沒差) • The bonds between atoms within a molecule (intramolecular bonds 分子內鍵結) are relatively strong, but the force of attraction between m ...
Oxidation-Reduction (REDOX) Reactions
... Oxidation-Reduction (REDOX) Reactions Assigning Oxidation Numbers The oxidation number of a pure element is 0. (Even if it’s diatomic.) The oxidation numbers in a compound add up to 0 The oxidation number of an ion is its charge. (Oxidation numbers in a polyatomic ion add up to the charge of t ...
... Oxidation-Reduction (REDOX) Reactions Assigning Oxidation Numbers The oxidation number of a pure element is 0. (Even if it’s diatomic.) The oxidation numbers in a compound add up to 0 The oxidation number of an ion is its charge. (Oxidation numbers in a polyatomic ion add up to the charge of t ...
Chapter 7 Chemical Formulas and Chemical Compounds
... elements that are more electronegative, and -1 when combined with metals. 6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is equal to zero. 7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge on the ion. 8. Oxid ...
... elements that are more electronegative, and -1 when combined with metals. 6. The algebraic sum of the oxidation numbers of all atoms in a neutral compound is equal to zero. 7. The algebraic sum of the oxidation numbers of all atoms in a polyatomic ion is equal to the charge on the ion. 8. Oxid ...
Quantitative chemistry 1
... of the drug. Food manufacturers check levels of purity. In the laboratory, reactants need to be mixed in the correct ratios to prepare the desired product. We measure mass and volume routinely in the lab but they are not direct measures of amount. Equal quantities of apples and oranges do not have e ...
... of the drug. Food manufacturers check levels of purity. In the laboratory, reactants need to be mixed in the correct ratios to prepare the desired product. We measure mass and volume routinely in the lab but they are not direct measures of amount. Equal quantities of apples and oranges do not have e ...
Facilitator`s Guide PDF
... participants the visualization of atomic orbitals for hydrogen at http://www.falstad.com/qmatom/. Use the “real orbitals” and start at n=1, moving to n=2 and n=3. Then change the value of l. (Optional: The changing color represents the phase of the wave—this is what’s “waving.” The probability densi ...
... participants the visualization of atomic orbitals for hydrogen at http://www.falstad.com/qmatom/. Use the “real orbitals” and start at n=1, moving to n=2 and n=3. Then change the value of l. (Optional: The changing color represents the phase of the wave—this is what’s “waving.” The probability densi ...
Monday, March 8, 2010
... • Einstein explained P.E. effect: energy of light not distributed evenly over classical wave but in discrete regions called quanta and later photons 1) EM wave concentrated in photon so no time delay between incident photon and p.e. emission 2) All photons of same frequency have same energy E=h, so ...
... • Einstein explained P.E. effect: energy of light not distributed evenly over classical wave but in discrete regions called quanta and later photons 1) EM wave concentrated in photon so no time delay between incident photon and p.e. emission 2) All photons of same frequency have same energy E=h, so ...
The Chemical Context of Life PPT
... of its location or structure, there are many kinds…not just gravitational PE! • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, or electron shell* * “Shell” is fraught with misconception—but biologists often u ...
... of its location or structure, there are many kinds…not just gravitational PE! • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, or electron shell* * “Shell” is fraught with misconception—but biologists often u ...
The Chemical Context of Life
... of its location or structure, there are many kinds…not just gravitational PE! • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, or electron shell* * “Shell” is fraught with misconception—but biologists often u ...
... of its location or structure, there are many kinds…not just gravitational PE! • The electrons of an atom differ in their amounts of potential energy • An electron’s state of potential energy is called its energy level, or electron shell* * “Shell” is fraught with misconception—but biologists often u ...
Rutherford backscattering spectrometry
Rutherford backscattering spectrometry (RBS) is an analytical technique used in materials science. Sometimes referred to as high-energy ion scattering (HEIS) spectrometry, RBS is used to determine the structure and composition of materials by measuring the backscattering of a beam of high energy ions (typically protons or alpha particles) impinging on a sample.