Chemical Heritage Foundation Visit
Exhibit 1 Burettes and Balances
This mini exhibit was about how the tools that chemists used in the past have
changed with the times, yet still retain their basic functions. The first exhibit,
Burettes and Balances, disc
Name _Armani Thomas_
Name of Cation
Name of Anion
Formula of Compound
Name of Compound
Title: Osmosis and Diffusion Lab: Dialysis Tubing (REDO)
Problem: Which molecules will be able to cross the selectively permeable membrane of the
Hypothesis: The starch and dextrose molecules will
Thursday 1 & 2
Lab Report: Stoichiometry Lab #2
Purpose: To react lead (II) nitrate and potassium iodide to form potassium nitrate and the yellow
precipitate, lead (II) iodide.
Background Information: Le
Lab Report: Chemical Activity
Purpose: To compare the chemical activity of four metals. Basically were testing how active a metal is compared to
Lab Report: Flame Test Lab
Problem: Will different salt solutions produce different colored flames when burned?
The electromagnetic spectrum consists
Chem 1A Exam 1
1. Which of the following are pure? Choose all that apply.
c. orange juice
d. calcium sulfate
e. vegetable soup
2. Balance the following equation: What is the coefficient in front of O 2?
CH3NH2 (g) + O2 (g)
Chem 1A Exam 2
1. Find the Hrxn for the following reaction using the standard enthalpies of formation.
C12H22O11 (s) + O2 (g)
CO2 (g) + H2O (l)
Salt Solution Densities: Using a Linear Equation
to Determine the Percent concentration of NaCl
Hamzah F. Alnajar
CHEM 1A Lab, Department of Chemistry, California State University, Fresno, CA 93740
September 20, 2016
By: Anna Delisi
Democritus (400 B.C.)
Democrituss atomic theory stated: The
universe is composed of two elements: the
atoms and the void in which they exist and
According to Democritus, atoms were very
tiny amounts of matter.
Evolution of Element Organization
Analysis - Complete the following questions using complete sentences. Use the mini-periodic table you
created to explain your answers where possible.
Create a mini-periodic table using the element symbols from
The Mole Project
The mole is a unit of measurement used in both biology and chemistry.
In chem, the mole is: the SI base unit used to measure the amount of a
substance, abbreviated mol; the number of carbon atoms in exactly 12 g of
13.3 Bond Polarity and Dipole Moments
its possible to determine the polarity of a bond by the size of
if a molecule is diatomic (two atoms), there is often only one bond, and that
will determine whether the molecule is polar
a molecule has a dipole momen
12.8 Physical Meaning of the Wave Function
the square of the function evaluated at a particular point in space indicates
the probability of finding an electron near that point
N1/N2 probability of finding the electron around points 1 and 2
o however, this
Study Guide Test 2
A) Rate of Effusion Particle Flow Rate (Particle number per time).
B) Rate of Diffusion Speed Flow Rate (Distance per time).
C) Lighter gas travels farther distance then heavier gas under same conditions.
Things to know for Chapters 1-5
Atomic Hypothesis of John Dalton:
o All matter is made up of atoms. These particles are indivisible and
o All atoms of a given element are identical, both in weight and in
Things to know for Chapter 12
Less frequency = less photon
o Frequency and photon energy are both inversely proportional
Electromagnetic radiation can be viewed as a stream of particles called
photons, each with energy hv
When light strikes a metal surfac
Chapter 4 - Stoichiometry
Molecular formula gives EXACT amounts
Empirical formula gives RATIO
o A central feature of Empirical Formula problems, is to find the
moles (or ratio of moles) of each element in the unknown
The reactant that produces th
A) Schrodinger Explained Below
B) Emission Spectra Explained Below
C) Uncertainty Principle When mass and velocity are simultaneously measured in the same
direction, the uncertainty can never be reduced to zero.
12.11 Polyelectronic Atoms (atoms with more than one electron)
electron correlation problem refers to the fact that we cannot rigorously
account for the effect a given electron has on the motions of the other
electrons in an atom occurs with ALL polyelect
Determining the Percent salt of an Unknown Solution