How to Perform a Dilution

Description: Most chemicals come in what is called a stock solution. Stock solutions are generally raw and very concentrated and most labs need only a low concentration. This is handled by performing a dilution, usually involving mixing the chemical with distilled water. This video will demonstrate the formula for figuring out how much chemical and water are needed and also reinforce the concept of adding acid to water and never vice versa.

Content Area: Physical Science/Chemistry

Instructional Objective: After viewing this video, a student will be able to calculate how much chemical and how much water should be mixed to make a dilution of a known concentration.

Learner Description: This video is targeted at middle school or high school physical science and chemistry students, although at a general level, college students taking an introductory lab science could also benefit from viewing.

Assessment: http://edtech2.boisestate.edu/kilnerr/502/dilution.html

Category:

Education

Tags:

• chem

[ssj7warrior]

Could you help me with serial dilutions? I am in need to master this for MLT. I have a basic understanding but I just want to sharpen that skill. An example is starting of with a 1:2 dilution and ending with a 1:8 dilution. It's something like you take 1/2 X1/2=1/4. Which is a 1:4 dilution and then multiply that by 1/2 to get the 1:8 dilution. I barely understand this. I just typed from the book.

[mariaaeve]

you are the best, legend

[Mejiera12]

nice explanation thanks

[geneticthrower]

Very helpful thank you. The equation you give is much simpler than how our professor is teaching us to do dilutions.