Taylor Zaccarine
The Gas Constant, R
Abstract:
The objective of this lab was to experimentally determine the gas constant. To do this,
we dissolved MG in HCl and weighed the displaced water. We did this for three runs and found
the average. We found our e

Jasmine Hughes
CHMG 145/Fall 2016
Alum Synthesis
Purpose:
The purpose of this lab is to synthesize alum from aluminum foil. Alum is a white ionic
compound and is water soluble. Alum is hydrated potassium aluminum sulfate and has the
formula of K Al(SO4 )2

Jasmine Hughes
CHMG 145
Precipitation Reactions Lab Report
Purpose:
The purpose of this lab are to predict precipitation reactions based on the solubility rules
and write the molecular, ionic and net ionic equation forms of balanced chemical equations for

Emily Henderson
Lab #3
Objective(s):
The objective of this experiment was to determine the solubility of KNO 3 in distilled water as a function
of temperature.
Procedure:
We began by preparing the following salt water mixtures (see table 1). Then we weigh

Emily Henderson
Lab # 6
Stoichiometry
3/20/17
Objective:
The objective of this lab was to calculate and compare the theoretical and experimental yields
of a reaction between CaCl2 (aq) and Na2CO3 (aq), to produce CaCO3 (s) and NaCl (aq).
Procedure:
We beg

Emily Henderson
Lab #8
Precipitation Rxns
4/4/17
Objective:
The objective of this procedure was to predict the reactions of compounds based on the
solubility rules, and to determine their equations.
Mixture (1mL each)
BaCl2, CuSO4
BaCl2, CaCl2
Observation

Emily Henderson
Lab #1
Objective(s):
The objectives of this experiment were to determine the density of an unknown object using
geometry and the displacement method, and to determine the density of an unknown liquid
sample using a calibrated pipet.
PROCED

Name: _KEY_
CHEM&141_EXAM III_F2008_CHAPTERS 7-10_105 Points
*Valuable equations and constants are at the bottom of the last page*
1. The total number of f-orbital electrons in americium are: (4 points)
a. 14
b. 20
c. 21
d. None of the above
2. Which atom

Emily Henderson
Lab # 4
Objective:
The objective of this lab was to confirm the law of definite proportions.
Procedure:
We began by filling a 100mL graduated cylinder with roughly 100 mL of 1.0M HCl. We then
poured the HCl into a 250mL beaker. We weighed

Emily Henderson
Redox Titration Lab
4/12/17
Objective(s):
The objectives of this lab were to standardize a KMnO4 solution by titration, and to determine
the amount of Na2C2O4 in an impure sample (B).
Procedure(s):
To begin the standardization of the KMnO4

Emily Henderson
Calorimetry Lab Report
4/17/17
Objective(s):
The objective of this lab is to determine the heat capacity, molar enthalpy change for the
neutralization reaction of HCL and NaOH, molar enthalpy change of the neutralization of NaOH
and HC2H3O

Emily Henderson
Lab #7
Acid-Base Titration
3/27/17
Objective:
The objective of this lab was to standardize a base (NaOH) using an acid (KHP), and to
determine the purity of an impure sample of KHP using the NaOH solution.
Table #1a Standardization of the

Jasmine Hughes
CHMG 145
Redox Titration
Purpose:
The purpose of this lab is to standardize an aqueous solution of potassium
permanganate, KM nO4 , and to determine the amount of sodium oxalate, N a2 C 2 O4 , in an
impure solid sample. An aqueous solution

Jasmine Hughes
CHMG 145
Calorimetry Lab Report
Purpose:
The purpose of this lab is to set up a cup calorimeter by using styrofoam cups with a lid and a
thermometer and determine the heat capacity of the cup calorimeter, C cal . The heat capacity
will be d

Taylor Zaccarine
Density of Solids and Liquids
Abstract:
The objectives of this lab are to determine the density of a solid sample using geometry
and displacement. Also,to calibrate a volumetric pipet using water. Another objective of this lab
is to deter

Taylor Zaccarine
Calorimetry
Abstract
The objectives of this lab were to set up a calorimeter to determine the heat capacity of it, to
determine the molar enthalpy change for neutralization of HCl and NaOH, to determine the
molar enthalpy change for the n

Taylor Zaccarine
Law of Constant Proportions
Abstract:
The objective of this lab was to confirm the law of constant proportions. To do this, we mixed
calcium carbonate and HCl and observed the reaction. We did this three times for varying
amounts of calci

Taylor Zaccarine
Week 3
Abstract:
The objective of this lab was to determine the solubility of potassium nitrate in distilled
water as a function of temperature. To do this, we inserted five prepared salt mixtures into a hot
water bath. We then removed it

Synthesis of Alum
Taylor Zaccarine
Abstract
In this lab, we want to synthesize Alum from aluminum foil. We did this by reacting
aluminum foil with potassium hydroxide.Then we chilled the filtrate. Then we added sulfuric
acid to achieve a white precipitate

Taylor Zaccarine
Visible Spectroscopy
Abstract:
The objective of this lab was to measure the absorption spectrums of food dyes, aqueous copper
(II) sulfate, and aqueous copper (II) sulfate + ammonium hydroxide. To do this, we used a
Spectronic 200 spectro

Taylor Zaccarine
Chlorophyll Extraction and Spectrum
Abstract:
The objective of this lab is to extract chlorophyll from spinach and acquire a visible absorbance
spectrum. To do this, I used a volumetric flask to vacuum filter liquid away from pulverized
l

Naman Nanda
CHMG 145-01-19
LAB#3
Report solubility LAB#3
Abstract
Objectives of this lab is to determine the solubility of potassium nitrate ( KNO3 in distilled
water as a function of temperature. We used five different salt mixtures into a hot water bath

Naman Nanda
CHMG 145-01-19
LAB#2
Report Density LAB#2
Abstract
Objectives of this lab is to determine the density of a given sample using geometry and
displacement Also, to determine the density of an unknown liquid sample with a calibrated pipet.
We will

CHMG145 / Fall 2016
Density
OBJECTIVES
Determination of Volume by Geometry The
volume of a solid object can be determined by
geometry if the sample has a regular geometric
shape. See Table 1. This method involves
measuring geometric features of the object

Jasmine Hughes
CHMG 145-01
Law of Definite Proportions Lab
Purpose:
The purpose of this lab was to prove the law of definite proportions. The law of definite
proportions is that a compound is comprised of a definite proportion of each of its elements by
m

Objectives;
r
Find the density of a solid object using geometry
r
Find the density of a solid object using displacement with water
r
Having a standard with water, calibrate a volumetric pipet
r
After calibrating the pipet, find the density of a liquid sam