Lab Equipment
Lab Equipment - Related Videos
09:52
Common Lab Glassware and Uses
0 Views •
2023
Source: Laboratory of Dr. Neal Abrams — SUNY College of Environmental Science and Forestry Glassware is a regular appearance in the professional chemistry laboratory, because it has a relatively low cost, extreme durability, and specific levels of precision. While some labware is being supplemented with plastic or even everyday kitchen materials, glass is still the standard material by which laboratory work is done. While there are few rules about glassware, there are some best practices for...
08:53
Lab Techniques - Student Protocol
0 Views •
2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Determining the Density of an EggExpand Density is a measure of how compact a substance or object is, and it is calculated as mass divided by volume. When a dense object is placed in a liquid with a lower density, the object sinks; when the object is less dense than the liquid, it floats. When the densities are the same, the object will be suspended in the liquid. In this experiment, we'll determine the density of an egg by creating a...
04:14
Lab Techniques - Concepts
0 Views •
2020
Measurement Accuracy The ability to repeat an experiment and get the same results, or reproducibility, is essential in scientific research. However, it’s impossible to repeat an experiment if you don’t know how you did it. Thus, scientists keep detailed records of their experiments in lab notebooks. These records include important information like the amount of each material used and descriptions of each step of the procedure. Equipment, like balances and volumetric or graduated glassware, is...
01:21
Lab Techniques - Instructor Prep
0 Views •
2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Preparation of LaboratoryExpand Here we show the laboratory preparation for 10 students working individually, with some excess. Please adjust quantities as needed. To set up for this lab experiment, wear the appropriate personal protective equipment, including a lab coat, chemical splash goggles, and gloves. Obtain enough small plastic bottles with caps for the number of students and label them ‘NaCl’. Use a...
05:37
Proper Personal Protective Equipment
0 Views •
2023
Robert M. Rioux & William A Elliott, Pennsylvania State University, University Park, PA Hazards are many and varied in the laboratory, but the right choice of PPE can make the laboratory a safe place to work.
FAQs
Calibration establishes whether an instrument or apparatus provides measurements close enough to an accepted value for the experiment. For balances, thermometers, and spectrometers, calibration supports dependable quantities, temperatures, and analytical readings. Regular calibration also improves reproducibility, helping researchers distinguish genuine chemical differences from errors introduced by measurement equipment.
Balances determine the mass of materials, whereas volumetric glassware supports controlled liquid quantities and solution preparation. These tools address different measurement requirements, so selecting the appropriate one depends on whether an experiment requires a known mass, a defined volume, or both. Using suitable equipment improves accuracy in subsequent reactions and analyses.
Hot plates and thermometers help establish and monitor temperature conditions, while mixing supports more uniform contact among materials. Controlling these variables can make reaction or preparation conditions more consistent and easier to reproduce. Without appropriate control, differences in heating or mixing may affect the reliability of observations and measurements.
A fume hood helps limit exposure to hazardous substances by controlling the work environment, while personal protective equipment provides an additional barrier for the person conducting the experiment. They address exposure control in different ways and are especially relevant when chemical handling could present safety risks. Together, these systems support safer laboratory practice.
A preparation workflow may combine a balance for determining material quantities with volumetric glassware for controlling liquid volume. Equipment selection should match the required measurement, and calibration should be considered before relying on the results. This coordinated use of instruments improves the accuracy and reproducibility of prepared solutions used in later experiments.
Researchers use spectrometers when the goal is to analyze compounds and generate measurement data, rather than simply handle, heat, mix, or measure starting materials. Preparation equipment establishes experimental quantities and conditions, while spectrometers contribute analytical information. This distinction makes spectrometers particularly relevant to compound analysis across chemistry research and instruction.