TUTTEE ACADEMY LOGO
broken image
  • Home
  • About Us
  • Subjects 
    • CHEMISTRY
    • BIOLOGY
    • PHYSICS
    • MATHEMATICS
    • PSYCHOLOGY
    • ECONOMICS
    • BUSINESS
    • COMPUTER SCIENCE
    • CHINESE
    • ENGLISH
    • SPANISH
    • IBDP IA / EE
    • IBDP TOK
    • ONLINE TUTORIAL
  • Exam Boards 
    • IBDP
    • IBMYP
    • IGCSE & GCSE
    • HKDSE
    • GCE A-LEVELS
  • Courses 
    • IBDP Tuition
    • GCE A-Level Tuition
    • IBMYP Tuition
    • I/GCSE Tuition
    • HKDSE Tuition
  • Admission Test Prep 
    • PREDICTED GRADE
    • SAT / SSAT
    • UKISET (UK)
    • BMAT
    • UKCAT / UCAT
    • LNAT
    • TMUA (Cambridge)
  • Student Results 
    • IBDP STUDENT RESULTS
    • IGCSE & GCSE MATHEMATICS
    • A-LEVEL STUDENT RESULTS
    • IGCSE STUDENT RESULTS
    • GCSE STUDENT RESULTS (UK)
    • HKDSE STUDENT RESULTS
    • OUR STORIES
  • Question Bank
  • Resources
SCHEDULE A LESSON NOW

I/GCSE Chemistry - Solubility

Edexcel Chemistry Solubility

· igcse chemistry,gcse chemistry,edexcel,solubility,salts

Solubility💦

If a substance dissolves well in a particular liquid, we say that it is soluble. if a substance does not dissolve at all in a particular liquid, we say that it is insoluble. 

 

A salt is a substance that can be made by reacting an acid with an alkali. 

broken image

Precipitates🤨

Lead nitrate and potassium iodide are salts that are soluble in water. Their solutions react together to produce lead iodide and potassium nitrate. Lead iodide is insoluble in water. It appears as a yellow precipitate, made up of particles of lead iodide suspended in the liquid. 

Here are the equations for reaction:

lead nitrate + potassium iodide -> lead iodide + potassium nitrate

Pb(NO3)2 (s)  + 2Kl (aq) -> PbI2 (s) + 2KNO3 (aq)

Notice how the equation is correctly balanced using numbers in front of Kl and KNO3. 

The state symbols show that all the substances are dissolved in water, apart from lead iodide, which is insoluble and so is present as a solid. You will need to know how to use state symbols like these in I/GCSE Chemistry.

broken image

A reaction in which an insoluble solid is produced from two soluble substances is called a precipitation reaction. It happens if the reactants are soluble and at least one of the products is insoluble but not if all the products are soluble.

Reference: https://i.ytimg.com/vi/diW7q7RFJBM/mqdefault.jpg

CLICK HERE TO LEARN MORE ABOUT OUR I/GCSE CHEMISTRY COURSES

SIGNUP FOR I/GCSE CHEMISTRY TRIAL NOW!

Drafted by Catrina (Chemistry)

Subscribe
Previous
AS/A-Level Chemistry - Order of reactions
Next
I/GCSE Chemistry - States of Matter
 Return to site
Profile picture
Cancel
Cookie Use
We use cookies to improve browsing experience, security, and data collection. By accepting, you agree to the use of cookies for advertising and analytics. You can change your cookie settings at any time. Learn More
Accept all
Settings
Decline All
Cookie Settings
Necessary Cookies
These cookies enable core functionality such as security, network management, and accessibility. These cookies can’t be switched off.
Analytics Cookies
These cookies help us better understand how visitors interact with our website and help us discover errors.
Preferences Cookies
These cookies allow the website to remember choices you've made to provide enhanced functionality and personalization.
Save