Chem 1 Worksheets WSHEET 1: Working with Numbers Practice
... 2. Calculate the molar mass of Ca(BO2)2·6H2O. 3. Calculate the number of moles in 17.8 g of the antacid magnesium hydroxide, Mg(OH)2. 4. Calculate the number of oxygen atoms in 29.34 g of sodium sulfate, Na2SO4. 5. Calculate the mass in grams of 8.35 1022 molecules of CBr4. 6. Household sugar, suc ...
... 2. Calculate the molar mass of Ca(BO2)2·6H2O. 3. Calculate the number of moles in 17.8 g of the antacid magnesium hydroxide, Mg(OH)2. 4. Calculate the number of oxygen atoms in 29.34 g of sodium sulfate, Na2SO4. 5. Calculate the mass in grams of 8.35 1022 molecules of CBr4. 6. Household sugar, suc ...
Periodic Properties of the Elements Effective Nuclear Charge, Zeff
... The splitting of the principle energy level into the s, p, d, and f energy sublevels is best explained by using the concept of “effective” nuclear charge, Zeff. An electron in a higher energy level is “screened” from seeing 100% (all the protons) of the nuclear charge by the electrons in lower energ ...
... The splitting of the principle energy level into the s, p, d, and f energy sublevels is best explained by using the concept of “effective” nuclear charge, Zeff. An electron in a higher energy level is “screened” from seeing 100% (all the protons) of the nuclear charge by the electrons in lower energ ...
Unit 3: Bonding and Nomenclature Content Outline: Chemical
... For example: H20 (water) or O2 (Oxygen gas) or C6H12O6 (Glucose) B. This term is usually used with molecules that are bound together using covalent bonds. C. These molecules can possess single bonds (-), double bonds (=), or even triple bonds (Ξ). 1. The purpose of “creating” the bonds is to achieve ...
... For example: H20 (water) or O2 (Oxygen gas) or C6H12O6 (Glucose) B. This term is usually used with molecules that are bound together using covalent bonds. C. These molecules can possess single bonds (-), double bonds (=), or even triple bonds (Ξ). 1. The purpose of “creating” the bonds is to achieve ...
PPT - George Mason University
... Although Aluminum is a metal, its halides exist in the gaseous state as covalent dimers - AL2Cl6 (contrast salts of group 1 & 2 metals) Aluminum Oxide, Al2O3, is amphoteric (can act as an acid or base) rather than basic like the Group 1A & 2A metals Although the other Group 3A elements are basically ...
... Although Aluminum is a metal, its halides exist in the gaseous state as covalent dimers - AL2Cl6 (contrast salts of group 1 & 2 metals) Aluminum Oxide, Al2O3, is amphoteric (can act as an acid or base) rather than basic like the Group 1A & 2A metals Although the other Group 3A elements are basically ...
Chemistry of Coordination Compounds
... model, the chlorides serve as counter ions to the cobalt/ammonia coordiation complex in the orange compound, while one of the ammonia molecules is replaced by Cl in the purple compound. In both cases, the coordination geometry is octahedral around Co. ...
... model, the chlorides serve as counter ions to the cobalt/ammonia coordiation complex in the orange compound, while one of the ammonia molecules is replaced by Cl in the purple compound. In both cases, the coordination geometry is octahedral around Co. ...
R E V I E W -- P R A C T I C E E X A
... c. eventually levels off as you move from left to right across a period d. varies unpredictably and cannot be determined under normal conditions 84. According to the information of the periodic table, Magnesium….. a. has a stable octet in its outermost energy level b. will accept an extra valence el ...
... c. eventually levels off as you move from left to right across a period d. varies unpredictably and cannot be determined under normal conditions 84. According to the information of the periodic table, Magnesium….. a. has a stable octet in its outermost energy level b. will accept an extra valence el ...
Honors Mid-Term Review Sheet
... 59. How is the modern periodic table arranged? 60. What determines an element’s chemical properties? ...
... 59. How is the modern periodic table arranged? 60. What determines an element’s chemical properties? ...
Practice Exam-Final Fall 2016 W-Ans
... Hint: The molecular formula is an integral multiple of empirical formula. That is, the molar mass = empirical molar mass x integer. From C: H = 80.00/12 : 20.00/1 = 6.66: 20 = 1: 3. So the empirical formula is CH3 and the empirical molar mass of CH3 = 12x1+1x3 =15. So the integer = 30/15 = 2. Thus t ...
... Hint: The molecular formula is an integral multiple of empirical formula. That is, the molar mass = empirical molar mass x integer. From C: H = 80.00/12 : 20.00/1 = 6.66: 20 = 1: 3. So the empirical formula is CH3 and the empirical molar mass of CH3 = 12x1+1x3 =15. So the integer = 30/15 = 2. Thus t ...
The Covalent Potential: A Simple and Useful Measure of the
... electrons of atom B, respectively; and P is the propagator of the inductive effect along the chemical bond and was assigned a value P = 1/2.7. Yuan’s scales of atomic and group EN have never been tested, not even in the original articles. Because Yuan’s scale is not very convenient for groups, such ...
... electrons of atom B, respectively; and P is the propagator of the inductive effect along the chemical bond and was assigned a value P = 1/2.7. Yuan’s scales of atomic and group EN have never been tested, not even in the original articles. Because Yuan’s scale is not very convenient for groups, such ...
Electron Counting 2000
... more instructional "classification" of organometallic compounds has been suggested by Green. We will describe this in some detail later. ...
... more instructional "classification" of organometallic compounds has been suggested by Green. We will describe this in some detail later. ...
Fehling`s Test / Benedict`s Test
... Copper(II) chloride solution is blue in colour due to the presence of [Cu(H2O)6]2+ Upon the addition of excess Cl-, H2O ligand is replaced by Cl- and ...
... Copper(II) chloride solution is blue in colour due to the presence of [Cu(H2O)6]2+ Upon the addition of excess Cl-, H2O ligand is replaced by Cl- and ...
Summer - Honors Chemistry
... when forming ions. If an atom gains electrons, it becomes negative and is called an anion. Nonmetals form anions, and the name of that ion is given by adding “-ide” to the root of the element name (e.g. O-2 is oxide). If an atom loses electrons, it becomes positive and is called a cation. Metals for ...
... when forming ions. If an atom gains electrons, it becomes negative and is called an anion. Nonmetals form anions, and the name of that ion is given by adding “-ide” to the root of the element name (e.g. O-2 is oxide). If an atom loses electrons, it becomes positive and is called a cation. Metals for ...
9791/02 UNIVERSITY OF CAMBRIDGE INTERNATIONAL
... (d) When a bromine molecule adds across a C=C double bond the two bromine atoms bond to opposite faces of the molecule. Draw all different possible products when one molecule of cyclohexa-1,4-diene reacts with two molecules of bromine. Show the six-membered carbon ring as a hexagon in the plane of t ...
... (d) When a bromine molecule adds across a C=C double bond the two bromine atoms bond to opposite faces of the molecule. Draw all different possible products when one molecule of cyclohexa-1,4-diene reacts with two molecules of bromine. Show the six-membered carbon ring as a hexagon in the plane of t ...
PERIODIC TABLE OF THE ELEMENTS
... 4. Know how to write the Lewis Dot Structures for groups 1-2, & 3A8A(remember group 3A = group 13 and cetera). 5. Know how valence electrons and orbitals relate. 6. Know what orbitals are. 7. Know and understand elements and ions. 8. Know how to break a compound down into its ionic components using ...
... 4. Know how to write the Lewis Dot Structures for groups 1-2, & 3A8A(remember group 3A = group 13 and cetera). 5. Know how valence electrons and orbitals relate. 6. Know what orbitals are. 7. Know and understand elements and ions. 8. Know how to break a compound down into its ionic components using ...
Chapter 2 Expanded Notes
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
Lecture 14_withfigures
... for more covalent M-O bonds of the non-metals → Acid Amphoteric Hydroxides also exist Alkoxides The basic formula of an alkoxide is OR- where R is an organic group such as an alkyl group. They are very reactive in water and hydrolyze quickly… OR- + H2O OH- + ROH (forms an alcohol) ...
... for more covalent M-O bonds of the non-metals → Acid Amphoteric Hydroxides also exist Alkoxides The basic formula of an alkoxide is OR- where R is an organic group such as an alkyl group. They are very reactive in water and hydrolyze quickly… OR- + H2O OH- + ROH (forms an alcohol) ...
Slide 1
... a. Cis and trans isomers of alkenes behave as distinct compounds with different chemical and physical properties 3. The hydrogen atom of a terminal alkyne can be removed as H+, forming an acetylide ion (R–CC–) a. Acetylide ions are potent nucleophiles used for making longer carbon chains by a nucle ...
... a. Cis and trans isomers of alkenes behave as distinct compounds with different chemical and physical properties 3. The hydrogen atom of a terminal alkyne can be removed as H+, forming an acetylide ion (R–CC–) a. Acetylide ions are potent nucleophiles used for making longer carbon chains by a nucle ...
Compounds
... 1. How many sulfur atoms are in 0.25 moles of Sulfur? 2. How many moles of boron are in 3.79x1024 atoms of Boron? 3. What is the molar mass of N2O5? 4. How many grams are in 1.34 moles of Aspirin (C9H8O4)? 5. How many grams are in a 10 L tank of Propane (C3H8) at STP? 6. How many atoms of sulfur are ...
... 1. How many sulfur atoms are in 0.25 moles of Sulfur? 2. How many moles of boron are in 3.79x1024 atoms of Boron? 3. What is the molar mass of N2O5? 4. How many grams are in 1.34 moles of Aspirin (C9H8O4)? 5. How many grams are in a 10 L tank of Propane (C3H8) at STP? 6. How many atoms of sulfur are ...
2015 Ch112 – problem set 5 Due: Thursday, Nov
... because of the energy mismatch of the orbitals that mix (ex: dxyꞌ and dx2-y2). Due to the weak overlap, the predicted bond order is 3. The compound is expected to be paramagnetic, with S = 1. The δ interaction would be stronger in the D4h symmetry, and the bond order would be 4. Also, the D4h confor ...
... because of the energy mismatch of the orbitals that mix (ex: dxyꞌ and dx2-y2). Due to the weak overlap, the predicted bond order is 3. The compound is expected to be paramagnetic, with S = 1. The δ interaction would be stronger in the D4h symmetry, and the bond order would be 4. Also, the D4h confor ...
Electron
... • An orbital is the three-dimensional space where an electron is found 90% of the time • Each electron shell consists of a specific number of orbitals ...
... • An orbital is the three-dimensional space where an electron is found 90% of the time • Each electron shell consists of a specific number of orbitals ...
Student Expectation
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
Chapter 2
... • An orbital is the three-dimensional space where an electron is found 90% of the time • Each electron shell consists of a specific number of orbitals ...
... • An orbital is the three-dimensional space where an electron is found 90% of the time • Each electron shell consists of a specific number of orbitals ...
Co-ordination compounds are compounds in which the metal atoms
... from electrostatic interactions between the metal ion and the ligand. Ligands are treated as point charges in case of anions or dipoles in case of neutral molecules . The five d orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained ...
... from electrostatic interactions between the metal ion and the ligand. Ligands are treated as point charges in case of anions or dipoles in case of neutral molecules . The five d orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained ...
Final Exam - Dawson College
... A transition metal ion with a charge of 1+ having 5 unpaired “4d” electrons The element with the highest first ionization energy in period 4 The excited electron configuration is 1s22s22p63s13p1 The halogen with the smallest electron affinity (less exothermic) The noble gas with electrons occupying ...
... A transition metal ion with a charge of 1+ having 5 unpaired “4d” electrons The element with the highest first ionization energy in period 4 The excited electron configuration is 1s22s22p63s13p1 The halogen with the smallest electron affinity (less exothermic) The noble gas with electrons occupying ...