how-are-strong-and-weak-acids-different-chemistry-for-all-fuseschool

Welcome to Clip from Spiral logo

Interactive video lesson plan for: How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool

Activity overview:

Learn the basics about strong and weak acids, and how they differ.

Strong acids are often used in School Science labs for experimentation but they have important uses in industry and the everyday world.

Sulphuric acid for example is found in car batteries but industry uses 200 million tonnes annually for the chemical industry. Hydrochloric acid found in your stomach and nitric acid are also examples of strong acids.

Acids react with water to produce hydrogen ions, or more strictly hydroxonium ions: Strong acids dissociate fully into their ions.

Most acids are weak, and remain largely as molecules in solution. Acids can be identified by using full-range indicator from 0 to 7 on the pH scale. pH is a measure of the concentration of hydrogen ions.

If you dissolve 1 mole of a strong acid, like HCl in water to make 1litre of solution it dissociates completely into ions so you also get 1 mole per litre of H+ ions, and a pH of 0. To get a solution of pH 4 you have to dilute this with 10,000 times its volume of water. We still have a STRONG acid but it is VERY dilute!

However, if you dissolve 1 mole of a weak acid, like ethanoic acid (also called acetic acid) to make a litre of solution it remains mostly as undissociated molecules.

If an acid is only 0.01% dissociated - so only one molecule in 10,000 are split into ions. Although the concentration of acid is 1 Mole, the concentration of hydrogen ions is only 0.0001 moles per litre, that is 10 to the power negative 4, making the pH 4. So here is an example of a fairly concentrated acid which is weak.

So acids cab be both concentrated and fully dissociated so STRONG, concentrated but not fully dissociated so WEAK, dilute but STRONG because fully dissociated or finally dilute and weak.

A weak acid can be concentrated and a strong acid can be dilute. Most acids are commonly occurring organic acids such as you find in lemons or vinegar - which are all WEAK so remain mostly as molecules and often have a smell. There are only a few STRONG acids, mostly non-metal oxides dissolved in water like sulfuric and nitric acids, but there is also Hydrochloric acid - found in your stomach to aid digestion!

SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.

JOIN our platform at www.fuseschool.org

This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind FuseSchool. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here:

https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV

Twitter: https://twitter.com/fuseSchool
Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org
Follow us: http://www.youtube.com/fuseschool
Friend us: http://www.facebook.com/fuseschool

This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org

Tagged under: Science,Chemistry,learn,Revision,GCSE,Alevels,AQA,students free online courses video science videos,student,fuseschool,global education,ict4d,acids,strong acids,weak acids,concentrated acids,dilute acids,hydrogen ions,hydroxonium ions,dissociate,sulfuric acid,hydrochloric acid,ethanoic acid,stomach acid,acids bases

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

Play this activity

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

Share on:

Share How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool on Google+ Share How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool on Twitter Share How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool on Facebook Pin How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool Email How Are Strong and Weak Acids Different | Chemistry for All | FuseSchool

Ready to see what else Spiral logo can do?

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

1000s of teachers use Spiral to deliver awesome, engaging activities that capture students' understanding during lessons.

Now it's your turn Sign up

Spiral Reviews by Teachers and Digital Learning Coaches

Spiral
Review of Spiral by teacher: Kathryn Laster @kklaster

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Spiral
Review of Spiral by teacher: Room 220 Math Stars @3rdgradeBCE

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Spiral
Review of Spiral by teacher: Miss Ord @ordmiss

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Spiral
Review of Spiral by teacher: Adam J. Stryker @strykerstennis

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Spiral
Review of Spiral by teacher: Dr Ayla Göl @iladylayla

A good tool for supporting active #learning.

Spiral
Review of Spiral by teacher: Brett Erenberg @BrettErenberg

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!

Get the Clip Chrome Extension & Create Video Lessons in Seconds

Add Clip to Chrome