Lab Skills
How to Read a Graduated Cylinder Correctly
Reading a graduated cylinder correctly is a basic skill that determines the accuracy of every solution you prepare. This guide covers eye position, meniscus…
Author: ali
Lab Skills
How to Label Lab Solutions Properly
What information a proper lab solution label needs, and why missing details cause downstream dilution errors.
Lab Skills
Common Pipetting Mistakes to Avoid
The most common pipetting mistakes that affect dilution accuracy, and simple technique fixes for each one.
Lab Skills
How to Prepare a Dilution Series
A step-by-step approach to planning, labeling, and executing an accurate dilution series on the bench.
Lab Skills
How to Use a Micropipette Correctly
A practical walkthrough of correct micropipette technique, from choosing the right tip to the two-stop plunger method.
Basics
What Is a Stock Solution?
What a stock solution is, how it differs from a working solution, and how to calculate the volume needed to dilute it.
Basics
How to Calculate a Percent Solution
How to calculate w/v, v/v, and w/w percent solutions, plus how to dilute an existing percent solution accurately.
Basics
Molarity vs Concentration: What’s the Difference?
Why molarity is only one specific type of concentration, and how to convert between molarity and mass-based concentration units.
Basics
What Does C1V1 = C2V2 Mean?
What each term in C1V1 = C2V2 means, why the equation works, and how to rearrange it to solve for volume or concentration.
Basics
Dilution Factor Explained With Examples
A clear explanation of dilution factor with worked examples, including the common mix-up between dilution factor and diluent volume.