DIALOGE OF TEACHER AND STUDENT ABOUT CHEMISTRY

Tugas terstruktur

          DIALOGE OF TEACHER AND STUDENT ABOUT CHEMISTRY LESSON.

"Time chemical class with miss.demi"

Miss.demi : good morning my student
All student : morning miss
Miss demi : oke, are you ready to study                       of chemistry?
All student : yes,we are ready miss
Miss.demi :Well today we will discuss                        the topic about the                                     solution.onyone knows                               what the solution is?
Najmi :    The solution is a mixture of                      two substances or more miss
Miss.demi :
Yes that's right najmi ,not just a mixture of two or more substances. But a mixture is said to be a solution when it is homogeneous. So is there anyone can conclude?

Deci : Miss i want to try to conclude. So            the solution is a homogeneous                mixture. Rigth miss?

Miss.demi : yes ,good job                                                deci.Well,miss will give an                        example, when miss mix 1                        tablespoon sugar with 1/2                        cup water, can it be called                        as solution?
Fatih : i think yes miss. Because sugar                and water will be homogeneus                if mixed miss.

Miss.demi : yes excelent fatih.

 Najmi : Miss i want to ask, so what is                    the difference between mix                      with miss solution?

Miss demi :
well good question najmi. So In a solution, the substances are dissolved while in a mixture the substances are mixed up but they are not completely dissolved.
   Examples of mixtures are foods such as vegetables salads, fruit salads, etc. An example of solutions are drinks and beverages such as powdered coffee, powdered milk that are mixed in water. 


  " A solution is a homogeneous mixture. A mixture can also be heterogeneous, but we do not refer to this as solution." 
 Understand all? 

All student : yes mis . we understood 

Miss.demi : hmm,The solution consists of two components of solute and solvent.the unit to determine the amount of solute in the solution is the concentration.onyone knows      what the concentration is? 

all student : nothing miss.

Miss.demi :  concentration refers to the amount of a substance per defined space. Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentration  consisiting of molar and molal 

 So formula of concentration is : 

Example : 

Oke , you all can try this formula . understand ? .if you don't understand,please question to me .oke?

All student : oke miss

Miss demi : On this day, until here our learning.see you next week.

For watching vidio ,click link :

https://youtu.be/pcplBjs02NE