Dr. Saidane Lecture Notes Chap1, Part 2 Measurements and Calculations
The Scientific method is a systematic process of scientific inquiry. The scientific method is a series of steps. 1. Making observations and collecting data. classifying, inferr
What is the mass of 3.5 mol of copper?
How many moles of gold are in 3.6 x 10-10 g of gold?
How many moles of silver are in 3.01 x 1023 atoms of silver?
What is the mass in grams of 1.2 x 108 atoms of copper?
What mass of gold con
Chapter 4 1. Write a balanced chemical equation for the chemical reaction that occurs when solid sodium oxide is added to water at room temperature and forms sodium hydroxide (dissolved in the water). 2. Translate the following chemical equation into a se
Chapter 5 1. a) Near room temperature, the specific heat capacity of ethanol is 2.42 J/ C.g. Calculate the heat needed to reduce the temperature of 150.0 g of C2H5OH from 50.0C to 16.6C. b) What mass of copper can be heated from 10C to 200C when 400 kJ of
Chapter 6 Part II 1. =1. 2. 3. 4. 5. Identify the values of the principal quantum number, n, and the azimuthal quantum number, l, for the following subshells: (a) 2p; (b) 5f; (c) 3s; (d) 4d. How many electrons can have the following quantum numbers in an
1. In each of these groups: (Se, S, and Te); (Cl-, Br-, and F-); (Ba, Sr, and Cs); (Fe+, Fe2+, and Fe3+); (Ca2+, Mg2+, and Ba2+); (S2-, Cl-, and Cl); (Ar, K, and Ca); (Sn, I, and Bi), Select the element that has (explain why): (a) (b) (c) (d) (e
Predict the shape, the bond angles and the polarity for the following compounds: PCl6-, PCl5, SiCl4, C2H2, NF3, IF5, SO2, AsH3, BF3, O3, HCN
How many and bonds are there in all the compounds in question 1. Determine the hybridization of
Chapter 10 1. What pressure in Torr, would a sample of argon exert if it were compressed from 500 mL to 300 mL at constant temperature, given that initially its pressure was 750 Torr? 2. A small cylinder of helium gas has a volume of 2.0 L and a pressure
Chapter 13 1. A 10.0-mL sample of 3.0 M KOH (aq) is transferred to a 250.0-mL volumetric flask and diluted to the mark. It was found that 38.5 mL of this diluted solution was needed to reach the stoichiometric point in a titration of 10.0 mL of a phosphor
Lab report: Model for Gen. Chem I Lab:
Title: Water of hydration.
Salts are made of the combination of metal and nonmetal that produce a chemical ionic bond. Normally, ionic bond is a very
strong bond, because of the transfer of electron
Experiment 8: Atomic Spectra
The quantum theory states that atoms and molecules can exist only in certain states, in
which each has an associated fixed amount of energy. An atoms electrons
Water of Hydration Lab Report
A salt is made up of a metal and a nonmetal which produces a strong ionic bond, but
there are some bonds such as BaCl2 2H2O that have a weak bond. The causes
Experiment 4: Empirical Formula Lab Report
An empirical formula of a compound gives the simplest whole number ratio of the atoms
of the different elements making up the compound. The law o
Experiment 6: Determination of the Molar Mass of a Solid Acid
A balanced chemical equation represents an equal molar ratios of reactants and products
involved in a chemical reaction. Once
Experiment 3: Densities of Solids and Liquids
Density is defined as its mass per unit volume, which is represented as D=M/V, where D
is the density of a sample, M is the mass in gr
Chapter 1 Part II 1. What is a hypothesis? 2. How does a quantity differ from a unit? difference. 3. List the four SI base units used in chemistry, and the quantities they represent. 4. What is the numerical equivalent of each of the following SI prefixes
Chapter 1 Part I 1. What is chemistry? 2. a) Name the three common states of matter. b) How does a solid differ from a liquid? c) How does a liquid differ from a gas? d) How is a liquid similar to a gas? 3. a) Define property b) How are properties useful
Chap 1, Part 1
Matter and Changes
Chemistry is the study of matter and the changes it can undergo.
Chemistry deals with questions such as:
1. What is that material made of?
2. What is its makeup and internal arrangement?
Dr. Saidane Lecture Notes Chap 2, Part 2 Compounds
Compounds are specific combinations of elements. Compounds are classified as either molecular or ionic. Molecular Compound, or molecule, is a neutral group of atoms that are bonded together. 1
Dr. Saidane Lecture Notes Chapter 2, Part 1 Atoms
Historical Development of the Model of the Nuclear Atom. A series of discoveries were made that led to the modern model of the atom. 1. In the late 1700, scientists studied chemical reactions and
Dr. Saidane Lecture Notes Chapter 3 Stoichiometry
Composition Stoichiometry is the quantitative analysis of substances. It deals with the mass relationships of elements in compounds. 1. A mole (mol) is the amount of a substance that contains as m
Dr. Saidane Lecture Notes Chapter 4 Chemical Equations and Reactions
1. A Chemical reaction is the process by which one or more substances, called reactants, are changed into one or more different substances called products. A chemical reaction
Dr. Saidane Lecture Notes Chapter 5 Thermochemistry
ENERGY AND ITS FORMS Energy is defined as the capacity to do work or to transfer heat. In chemistry, energy can be potential (stored), kinetic (motion), thermal (heat), radiant (light), and elec
The Modern Atom
Skills you should have mastered
1. Explain the correlation between light, energy, and photons.
2. Distinguish between a continuous and a line spectrum in terms of types of photons
Periodic Properties of the Elements
It is defined as half the distance between the centers of neighboring atoms . There are two
factors that affect the atomic radius: the pull effe
Dr. Saidane Lecture Notes CHAPTER 8, Part 2 Chemical Bonding
BONDS ENERGIES of IONIC COMPOUNDS Lattice Energy In order for atoms to produce ionic compounds they need energy to produce cations and anions from their neutral atoms. The ionization e
CHAPTER 8, Part 1
There are three major types of chemical bonds: Ionic, covalent and metallic.
Metallic bonds are bonds between metallic atoms. A metallic solid consists of
cations surrounded by a sea o
Dr. Saidane Lecture Notes Chapter 9 Molecular Geometry and Bonding Theory
SHAPES OF MOLECULES AND IONS To a chemist, one of the most interesting aspects of a molecule is its shape or molecular geometry, which is the arrangement in space of the a
A gas is a fluid state of matter that fills the container it occupies and can be easily
There are 11 elements that are gas under normal conditions. They all lie toward
the upper right of the
Experiment 5: Spectrophotometery and Beers Law Lab Report
In spectrophotometry, there is a white light emitted from a tungsten lamp, that is passed
through the solution. The white light is