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LESSON PLAN IN CHEMISTRY. Prepared By: MARIVIC BULDA FRANCISCO ERNESTO RONDON HIGH SCHOOL Quezon City PHILIPPINES. http://www.richmil-store.com/images/Test%20Tubes%20in%20100ml%20Beaker%20Oct%2007%20-%20Feb%2008%20Resize%20Water.jpg.
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LESSON PLAN IN CHEMISTRY Prepared By: MARIVIC BULDA FRANCISCO ERNESTO RONDON HIGH SCHOOL Quezon City PHILIPPINES http://www.richmil-store.com/images/Test%20Tubes%20in%20100ml%20Beaker%20Oct%2007%20-%20Feb%2008%20Resize%20Water.jpg
TARGETS: At the end of lesson , the students are expected to; • 1. Define concentration of solutions. 2. Differentiate between dilute and concentrated solutions. • 3. Express concentration of solutions • in molarity. • 4. Evaluate common solutions in terms • of their concentration. 18 K Gold ring
These are some common solutions …… steel dextrose brass Acetic acid Juices http://lancaster.unl.edu/food/iced-tea.JPG vinegar muriatic acid rubbing alcohol Do you use these at home?
What is a Solution? A solution is a homogeneous mixture of two or more substances. What is a Solute? Solute is the substance dissolved. It is present in a lower concentration. What is a Solvent? Solvent is the dissolving medium. It is present in a greater concentration.
Sweet, sweeter, sweetest The glasses below contain apple juice..... http://en.wikipedia.org/wiki/Concentration 2 1 3 4 5 Which of them is the most concentrated? Click on the glass number, to find if you are correct.
I’m Sorry BACK HOME NEXT
FANTASTIC! GREAT JOB Did you taste it? BACK HOME NEXT
Sweet, sweeter, sweetest The beakers below contain sugar solutions..... http://www.ask.com/pictures?l=dis&o=15561&q=beaker%20of%20water&qsrc=168 2 3 1 Which of them is the most concentrated? How will you know the sweetest?
CONCENTRATION of SOLUTIONS • (the relative amount of solute dissolved in a given solvent)
Solutions contain in relative proportions Solute Solvent called Concentration of Solutions
DID YOU GET IT? Let’s Move on…We will now go to another level.
A. Particles of dilute CuSO4 solution How many layers of the solute (CuSO4) particles are there? Solution H2O-Solvent CuSO4 -Solute 3 layers http://universe-review.ca/I12-18-solution.jpg
B. Particles of concentrated CuSO4 (copper sulfate) solution How many layers of the solute (CuSO4) particles are there? Solution H2O-Solvent CuSO4 -Solute 5 layers http://universe-review.ca/I12-18-solution.jpg
The following pictures show particles in a mixture of water(red & white) and bromine (yellow) . A B Which one is more concentrated? Why? BACK HOME NEXT
A Very Good! B There are more yellow particles (4 pieces) seen…. More solute particles, more concentrated
What is the difference between dilute and concentrated solutions? Dilute CuSO4 solution Concentrated CuSO4 solution Contains more solvent, the solute becomes more dilute (more spaces between the solute molecules Contains less solvent, less spaces between the solute molecules http://cwx.prenhall.com/bookbind/pubbooks/hil...
Any questions? Write your name below the statement if you agree with it. A solution is dilute if more solvent particles are present with same amount of solute. NAMES HERE NAMES HERE
More questions? Write your name beside the statement if you agree with it. A solution is concentrated if more solute particles is present with same amount of solvent. NAMES HERE
Dilute Solutions Concentrated contain in relative proportions Solute Solvent called Concentration of Solutions Low High can be expressed as Molarity • %By Mass % By Volume Normality Mole Fraction
This is another example of dilute and concentrated solutions. http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/text_images/CH03/FG03_15.JPG Which is dilute? Which is concentrated?
The concentration here is viewed in terms of M (Molarity) Concentrated Dilute Greater Volume of Solution Less Volume of Solution
To understand about MOLARITY, and more about solutions, Click Below BACK HOME