Honors General Chemistry laboratory, Chem19
Name
Bench
TA
Lab day and section
Experiment #
Date of Experiment:
Date of Submission:
5
Partner
Title:
Oxidation-Reduction Titration:
Analysis of complex compounds
Abstract:
In this experiment, I firstly standa
General Chemistry laboratory, Chem18/19
Experiment #
2
Title:
PRELAB ASSIGNMENT
Weight percent of sugar in
commercial beverages
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations and answers to
Questions:
Name: Bench #:
Titration of oxalates
Lab day and section:
How would each of the following problems in the standardization of KMnO4 affect the measured
value of the KMnO4 molarity (make it larger, smaller, both larger and smaller or have no effe
General Chemistry laboratory, Chem18/19
Experiment #
4
PRELAB ASSIGNMENT
Stoichiometry: Syntheses of
complex compounds
Title:
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations and answers to a
General Chemistry laboratory, Chem18/19
Experiment #
5
Title:
PRELAB ASSIGNMENT
Oxidation-Reduction
Titration: Analysis of
complex compounds
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations a
80
60 40 20
A-3 K-3
E-3
E-4
AA-2 K4
2
A-1
K-1
E-2
0.94
0.92
0.9
c.methyl acetate
b.isoproyl alcohol
0.88
0.86
0.84
0.82
0.8
0.78
0.76
Density (g/ml)
a.methyl ethyl ketone
Column B
Column B
Column B
86.0
E-1
0
No rma l b o iling p o int ()
Boiling points v
General Chemistry laboratory, Chem18/19
Experiment #
3
Title:
PRELAB ASSIGNMENT
Periodic Table and Trends of Elements
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations and answers to all quest
Honors General Chemistry laboratory, Chem19
Zunyu He
Thursday/H
Name
Lab day and section
Experiment #
Date of Experiment:
Date of Submission:
8
Partner
Title:
Bench
TA
06
Jie Li and Noam
10/31/2013
11/03/2013
Ruthlove
Solutions: Electrical conductivity,
f
Honors General Chemistry laboratory, Chem19
Name
Bench
TA
Lab day and section
Experiment #
Date of Experiment:
Date of Submission:
6
Partner
Title:
States of matter: Boiling point and
density of an unknown liquid.
Infrared spectra and structures of
organi
General Chemistry laboratory, Chem18/19
Experiment #
9
Title:
PRELAB ASSIGNMENT
Column and paper
chromatography
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations and answers to all questions o
General Chemistry laboratory, Chem18/19
Experiment #
8
Title:
PRELAB ASSIGNMENT
Solutions: Electrical
conductivity, freezing point
depression
Prelab assignment questions are in the lab manual. If needed, modify this form (i.e. include sample calculations
General Chemistry laboratory, Chem18/19
Experiment #
3
Title:
Periodic table and trends
of elements
Purpose:
In this experiment we will need to deeply understand the periodic table and trends of
elements to be able to plot the periodic trends among the el
General Chemistry laboratory, Chem18/19
Experiment #
2
Title:
Weight percent of sugar
in commercial
beverages
Purpose:
In this experiment, we need to determine the weight
percent of sugar in a commercial beverage through a
functional relationship between
General Chemistry laboratory, Chem18/19
Experiment #
5
Title:
Oxidation-Reduction
Titration: Analysis of
complex compounds
Purpose:
In this experiment I will determine the number of waters in the hydrate of the
compound I prepared in previous experiment t
General Chemistry laboratory, Chem18/19
Experiment #
7
Title:
States of matter: Boiling point
and density of an unknown
liquid. Infrared spectra and
structures of organic
molecules
Purpose:
In this experiment, we will be given an unknown liquid to identif
General Chemistry laboratory, Chem18/19
Experiment #
7
Title:
Gases: Evaporation, vapor
pressure, and separation of
gases by GC/MS
Purpose:
In this experiment, we will need to analyze further about the unknown liquids we and
our partners' have through the
General Chemistry laboratory, Chem18/19
Experiment #
9
Title:
Column and paper
chromatography
Purpose:
In this experiment, we will need to study about a technique of separating mixture
which is called chromatography by performing two types of chromatograp
General Chemistry laboratory, Chem18/19
Experiment #
8
Title:
Solutions: Electrical
conductivity, freezing
point depression
Purpose:
In this experiment, we will investigate the ability of our organic liquids to
conduct electricity and measure the molar we
Honors General Chemistry laboratory, Chem19
Name
Bench
TA
Lab day and section
Experiment #
Date of Experiment:
Date of Submission:
9
Partner
Title:
Column and paper chromatography
Abstract:
In this experiment, we performed two types of chromatography to l
Honors General Chemistry laboratory, Chem19
Name
Bench
TA
Lab day and section
Experiment #
Title:
7
Date of Experiment:
Date of Submission:
Gases: Evaporation, vapor pressure,
and separation of gases by GC/MS
Abstract:
1. In this experiment, we analyzed f
Questions:
Weight percent of sugar in commercial beverages.
Name:
Q1a:According to a recent survey, an average young adult consumes two 12-fluid oz. servings of a sugar drink
every day. Estimate how many grams of beverage the average young person consumes
Chem 15a
Name:
Exam 2
November 7th, 2012
Each problem is worth 10 points, so do the easy (?) ones first. Do all of your work
on these pages, only these will be graded.
1 dV
p
Chem 15a
Name:
Exam 1
October 3rd, 2012
Each problem is worth 10 points, so do the easy (?) ones first. Do all of your work
on these pages, only these will be graded.
E =
Practice Test 1
1) Give the names of the following compounds or ions:
a) B2O3
b) Cl2O7
c) H2C2O42H2O
2) Give the formulas of the following compounds or ions:
a) Sulfurous acid
b) Oxalate anion
c) Sodium oxalate
3) W rite the formula for the acid or base p
Sample problems
1) Multiple choice
a) Consider 5 liquids below. Of these compounds which is expected to have the lowest vapor pressure?
(A) (CH3)2CHOH
(D) CH3CH2-O-C(=O)CH3
(B) CH3(C=O)CH3
(E) CH3OH
(C) CH3CH2OH
b) Which of the following will cause the me
Chem19
Handout: Evaporation, Vapor pressure, GC/MS
_
Reading: manual - Exp.8b
Evaporation (also called vaporization) is the change of a substance from the liquid phase to the gas
phase. Vaporization occurs at the surface of a liquid where the molecules ar
