Conductivity Electrolytes, Non-Electrolytes, and the Effect of Concentration
Part I: Observe the effectiveness of ionic compounds and molecular compounds in
producing electrolytes within aqueous solutions.
Part II: Study the relationship
Determination of Melting Points and Boiling Points
Identify unknown substances by observing the transition between physical phases of a
substance as a result of a temperature change.
Melting Point Section:
Redox Titrations: Titration of Sodium Hypochlorite in Bleach
Carry out a redox titration in order to find the percent mass of the salt sodium
hypochlorite in a sample of bleach.
Preparation of 0.2 M sodium thiosulfate solution:
Experiment B3: Chemical Kinetics
To measure the rate of a chemical reaction and determine the rate law
To evaluate the effect of temperature on the rate of a chemical reaction and determine
the activation ene
Experiment B1: Molar Volume of a Gas
Demonstrate single replacement reaction
Calculate molar volume of gas at STP
Calculate the molar mass of an unknown metal
Chemistry Information Sheet
K o C 273.15
F 1.8o C 32
M 1V1 M 2V2
pH log H 3O
H O 10
c = 2.998 x 108 m/s
h = 6.626 x 10-34 Js
Chemistry Information Sheet
K " o C ! 273.15
PV " nRT
F " 1.8%o C ! 32
q " mc&T
M 1V1 " M 2V2
c " ( %'
E " h %'
pH " + log H 3O !
)H O * " 10
c = 2.9
LAB Vapor Pressure
Objective: The objective of this lab is to determine the vapor pressures of liquids, find the vapor
pressure of ethanol and the value of delta H.
1. Open file Vapor Pressure from Chemistry 1A desktop folder.
2. Use a hot plat
LAB: Hesse Law
Title: Additivity of Heats of Reaction & Hesss Law
Purpose: The objective of this lab was to conduct five chemical reactions to calculate each the
heat of reactions in order to confirm Hesss Law.
Procedure: The procedure of this lab was to
LAB 7 :Determination of Molar volume of gas
Objective: The objective of this lab is to determine the molar volume of a gas. We are to use
1) Obtain a 50 mL eudiometer tube, stopper assembly, and a wide-mouth 1 L beaker.
2) Wrap the stopper with
1. Cch cn bng phn ng ca Cu vi HNO3
- Vi dung dch HNO3 long thng cho ra kh NO
3Cu + 8HNO3 3Cu(NO3)2 + 2NO + 4H2O
Cch nh : Ba ng tm long hai no
- Vi dung dch HNO3 c thng cho ra kh NO2 (mu nu )
Cu + 4HNO3 Cu(NO3)2 + 2NO2 + 2H2O
Cch nh : Mt ng bn c cho hai kh
Molar Volume of a Gas
Determine the Molar Volume of a Gas.
Refer to Laboratory Manual page 120.
Data and Calculations:
Mass of Metal Sample, g
Total Volume of Hydrogen Gas, mL
Temperature of the gas, C
Barometric Pressure, mmH
Additivity of Heats of Reaction: Hesss Law
Show that the reaction of two experiments will give you the reaction of the third one
using the Additivity Property of Hesss Law.
1) Obtain and wear goggles.
2) Setting up
Vapor Pressure and Heat of Vaporization
Measure the pressure inside a sealed vessel containing a volatile liquid over a range of
temperatures. Determine the relationship between pressure and temperature of the
volatile liquid. And calcul
Acid- Base Titration
Determine the chemical makeup of a mixture through the use of acid-base titration.
1) Weigh ~525mg of KHP and record the mass.
2) Using a funnel, transfer to a 25 mL volumetric flask.
Determination of the Empirical Formula of a Hydrate
Establish the formula of a hydrate using gravimetric analysis.
Refer to Laboratory Manual page 59.
Data and Calculations