High School Statutory Authority: Students shall be awarded one credit for successful completion of this course. Chemistry or concurrent enrollment in Chemistry.
Use of physical chemical characterization including AFM Atomic Force Micoscope is a very-high resolution type of scanning probe microscope that creates an image by tapping the sample surface with a probe.
It can also measure surface roughness and mechanical properties, and allows some forms of microfabrication. Coulter counter Counts and measures particles suspended in electrolytes.
The Coulter Principle relies on particles moving in an electric field, which causes measurable disturbances in the field proportional to the size of the particles.
Suitable for measurements of e. The instrument has further been fitted with a Thermaltake Bigwater is liquid cooling system, to prevent cuvette fogging at high temperatures.
Drop Volume Tensiometer TVT 2 consists of step motor driven syringe including a needle for droplet formation, setup for optical droplet falling registration, and software to operate hardware and calculate surface tension of liquid.
DSC In differential Scanning Calorimetry, the heat required to increase the temperature of a sample, relative to a reference, is measured as a function of temperature. This allows the determination of the sample heat capacity and the detection of phase transitions in the sample.
The calorimeter can be used to study solid, soft and liquid substances. Typical sample masses are mg. The DSC can be run in modulation regime to resolve reversing and non-reversing heat effects.
DVS Dynamic vapor sorption instrument The TA Instruments Q SA is used to determine the amount of moisture a material can adsorb or desorb as a function of its mass, temperature, time and relative humidity.
This instrument is primarily concerned with applications where changing levels of humidity can influence or significantly alter important properties or uses of a material e.
It allows imaging of samples over a wide range of magnifications roughly 50xx for this SEM and with a large focal depth. Using different detectors, differences in sample composition different atomic weight may be highlighted and even elemental composition of specific sample features determined.
The EVO LS10 offers two additional imaging modes, apart from the standard high vacuum mode for fully conducting samples. In variable pressure mode a low pressure of nitrogen gas usually mbar is allowed in the chamber.
The gas is ionized by the electron beam and the ions help dissipate the surface charge built up in poorly conducting samples, allowing imaging without surface coating.
In extended pressure mode, water vapour is introduced into the chamber, which together with a Peltier Coolstage allows imaging of hydrated samples at controlled temperature and relative humidity.
An Agar automatic sputter coater is also available for gold coating of samples. As in other chromatography techniques, separation is possible because components of a mixture have different affinities for a mobile and stationary phase.
Single wavelength UV detector. In GC the compounds are separated between a liquid stationary phase and a gas mobile phase and is suitable for the analysis of compounds that can be vaporized without decomposing. Separation of components from a mixture is primarily based on differences in boiling point or vapor pressure.
Goniometer The drop shape analyser can determine the contact angle between a sample droplet and a flat substrate.Lab 4 - Calorimetry Purpose To determine if a Styrofoam cup calorimeter provides adequate insulation for heat transfer measurements, to identify an unknown metal by means of its heat capacity and to determine a heat of neutralization and a heat of solution.
Calorimetry Review Worksheets Additional Review: These concepts and the attached lab were covered in the Gr 10 Chemistry Class.
Review the procedure and answer all of the worksheet, pre-lab and post lab questions. Calorimetry: Heat of Neutralization Prepared by Dongling Fei Manatee Community College (oC) for at least 5 min; Post-Lab Assignment 1.
A student determined the calorimeter constant of the calorimeter, using the procedure described in this lab. The student added mL of cold wter to Ml of heated. Gizmo Lab: Calorimetry Lab Alternate Assignment Which of the following substances could be heated from 20 C to C most quickly?
The temperature of both beakers will be less than 60°C and greater than 40°C. D. The temperature of both beakers will be 60°C.
The two systems shown below are identical except for the rod connecting. Many Proteins form specific 3D structures by folding so that they can function. Revealing folding reaction of protein is a basic problem to understand their structures and functions.
6 03 Calorimetry Lab. Lab Calorimetry Calorimetry is the measurement of the quantity of heat exchanged during chemical reactions or physical changes. For example, if the energy from an exothermic chemical reaction is absorbed in a container of water, the change in temperature of the water provides a measure of the amount of heat added.