Kamis, 25 Mei 2017

VIDEO ABOUT CHEMISTRY LEARNING

STOICHIOMETRY

What is stoichiometry?
            Stoichiometry is the basic chemical calculation that states quantitative relation of chemical formula and chemical equations. With stoichiometry you can calculate for examples; the mass, the mol, the volume, the percent, themperature, amount of molecul, amount of atom and another of thing.

Examples:
2,3 gram Natrium (Ar:23) included in 0.5 liter of HCl 0.1 M.

Question :
1. what is the chemical equations will be happen ?
2. how much mass of Natrium remainded ?
3. how much mass of NaCl produce ?
4. How much volume H2 in STP ?

Answers:
1. what is the chemical equations will be happen ?
     2Na + 2HCl -----à 2 NaCl + H2

2. how much mass of Natrium remainded ?
3. how much mass of NaCl produce ?
4. How much volume H2 in STP ?

The moll of natrium reacted :


Mol Na = mass / Mr                           Mol HCl = Volume x concentrate
       = 2,3 grm / 23                                             = 0.1 liter x 0.5 M
       = 0.1 mol                                                    = 0.05 mol


              2Na                +           2HCl       -----à             2 NaCl       +           H2
M        0,1 mol                         0,05 mol                              -                         -
R         2/2 x 0,05 mol              0,05 mol                         0,05 mol           ½ x 0,05 mol
S          0,05 mol                          -                                   0,05 mol              0,025 mol


2. how much mass of Natrium remainded ?
    The mass Na reacted is                                       The mass of Natrium remainded is
    Mass = mol x Mr                                                    2,3 grams – 1,15 grams = 1,15 grams
            = 0,05 mol x 23
            = 1,15 grams


3. how much mass of NaCl produce ?                       4. how much volume H2 in STP ?
     Mass = moll x Mr                                                      volume (STP) = moll x 22,4
             = 0,05 mol x 58,5                                                                      = 0,025 mol x 22,4

             = 2,925 grams                                                                            = 0,56 liter


For the video lets check this link :
https://youtu.be/bq7_KHgwma8

Sabtu, 20 Mei 2017

RPP CURRICULUM 2013

RPP
(RENCANA PELAKSANAAN PEMBELAJARAN)
IMPLEMENTATION OF CURRICULUM
Unit of school             : SMA NEGERI 1 TANJUNGPANDAN BELITUNG
Class/semester            : X/I
Subject                        : Chemistry
Direct material            : The role of chemistry in real life
The meeting                : 1
Allocation of time       : 2 x 45 minute

A. Main Competence
MC 1 : Inspirit and practice the religions who they believed
MC 2 : Inspirit and practice the behavior of honest, discipline, responsibility, care, manners,
            responsive, and proactive. Show they behavior in the part of solution in any problems
            for interaction in social environment and nature and then for example of community
            association.
MC 3 : Understanding, applying, and analizing the knowledge of factual conceptual,
            procedural, and persuan to curiosity about science, technology, art, culture, and
            humaniora with concept of humanity, nationality, political, and civilization relate to
            phenomenon and also implement procedural knowledge in sector assessment which
            one specific and suitable with they ability and enthusiasm to solve the problem
MC 4 : Processing, thinking, and presenting in domains of abstract and concrete which one
            relevant to self development which they have learned in school with them self and
            they can use the method which one suitable with science rules.

B. Basic Competence and Indicator

BC from MC 1 : Realize that there is regularity particle structure as form greatness of god
                            and knowledge about particle structure as procceds of human idea which the
                            truth is tentatively.
Indicator           : Realize that there is regularity chemistry and its role in real life as form
                            greatness of god and knowledge about atom particle structure as procceds of
                            human idea which the truth is tentatively.
BC from MC 2 :  Showing the behavior of scientific to planning and doing an experiment and
                            also discusstion which one be realized for attitude in daily life.
Indicator            : Showing the behavior of scientific in disscustions about the role of
                             chemistry in daily life.
BC from MC 3  : understanding about the role of chemistry in daily life.
Indicator            : Mentions the product of chemistry and the fuctions in daily life.
BC from MC 4  : Evaluating about the role of chemistry in daily life.
Indicator            : Making some conclusion about chemistry and the role of chemistry in daily
                             Life.

C. The targets of learning

1. The students can realize that there is regularity chemistry and its role in real life as form
    greatness of god and knowledge about atom particle structure as procceds of human idea
    which the truth is tentatively.
2. With disscustion about the regularity chemistry and its role in real life, the students can
    showing the behavior of courios, discipline, democratize, and communicative.
3. The students can mentions the product of chemistry and the fuctions in daily life.
4. the students can evaluating about the role of chemistry in daily life.

D. The materials of learning

1. The position of chemistry in science
2. The nature of chemistry
3. The role of chemistry in daily life

E. The method of learning

Opproach        : Scientific
Design             : Guide Inquiry
Methode          : disscustion, training, assignment

F. The activity of learning

The activity
Description
Allocation of time




INTRODUCTION

1. The teacher give response for the greeting
2. The teacher check the attendance of the students
3. The teacher make some group, in the group there are
    4- 6 students
4. The teacher communicate about the main of learning
5. The teacher give some motivation with give some
    question about some chemical product in daily life





 15 minute











MAIN


1. The students observe some picture or video about the
    chemical product in daily life, like soap, detergent,
    toot paste, shampoo, cosmetic, vegetable oil,   
   medicine, salt,etc.
2.The students give some questions about the
   observation.
3.The groups discuss about the role of chemistry in
   daily life from the book or literature and find the
   other product and the fuctions in daily life.
4.Review the literature about the role of chemistry in
   daily life, IPTEK development, and also complete
   the global problem.
5.The each groups make some conclusion about the
   observation and disscustion of the nature of
   chemistry and the role of chemistry in daily life.
6. The each delegation of the groups represent  about
    the observation and disscustion of the nature of
    chemistry and the role of chemistry in daily life.
7. The students answer the individual exercise in LKS












 60 minute




CONCLUSION

1.The teacher give some appreciation for the best
   presentation group.
2.The teacher repeat about the subject they have
   learned.
3.The teacher give some extra assignment for all of the
   group about the others role of chemistry in sector
   sanity, agriculture, geology, and engineering.
4.The teacher remind the student to study again in
   their home for the examination.




15 minute

G. The tools and source of learning

a. Tools and material
            1. Notebook
            2. LCD Proyector
b. Source of learning
            1. LKS
            2. Modul

H. The result of assessment and process

Attachment 1 : Form of observation for assessment of the spiritual attitude
NO
NAME
The
aspect
for
assessment
Final score
predicate


A
B
C
D


1







2








Information.
The indicator for assessment :
A. Give greeting and praying, according to they religion, before and after the lesson.
B. Give greeting before and after give the opinion in presentation
C. Be grateful if they see the greatness of God
D. Be grateful if they see the greatness of God when they study about the lesson

The scale for assessment :
·       Scale 4 = Always do the indicator
·       Scale 3 = Often do the indicator
·       Scale 2 = Sometimes do the indicator
·       Scale 1 = Never do the indicator

Attachment 2 : Form of observation for assessment of the social attitude
NO
NAME
The
aspect
for
assessment
Final score
predicate


courious
discipline
democratic
communicative




A
B
C
A
B
C
A
B
C
A
B
C


1















2















3















4
















Information.
The indicator for assessment :
1. COURIOUS
            a. Anthusiastic to find the information about the lesson
            b. Pay attention carefully when the teacher explain about the lesson
            c. Give some questions about the lesson
2.  DISCIPLINE
            a. Comes to class at the time
            b. Answer the LKS at the time
            c. Follow the rule when they do the individual and group assignment
3.  DEMOCRATIC
            a. Appreciate the others oppinion
            b. Forgive the mistake from the others
            c. Accept the agreement
4.  COMMUNICATIVE
            a. Use the right language
            b. Give some questions and answer the questions
            c. Can give the opinions when discus about a problem

The scale for assessment :
·       Scale 4 = Always do the indicator
·       Scale 3 = Often do the indicator
·       Scale 2 = Sometimes do the indicator
·       Scale 1 = Never do the indicator

Attachment 3 : Form of observation for assessment of the skill
NO
Name
The aspect for assessment
Final score
Predicate


A
B
C
D
E


1








2








3








4









Information.
The indicator for assessment :
A. The courage to giving the oppinions
B. Control of the material
C. Skill to give and answer the questions
D. Skill to use the right language
E. Performance

The scale for assessment :
·       Scale 4 = Excelent
·       Scale 3 = Good
·       Scale 2 = Enough
·       Scale 1 = Less

Attachment 4 : Form of observation for assessment of the knowledge
Questions :
1. Please explain about the nature of chemistry!
2. Give 3 examples about the chemical product and the fuctions!
3. Give 1 example about the role of chemistry in daily life and explain about that !

The scale for assessment :
·       Scale 3 = For the right answer and complete
·       Scale 2 = For the right answer but uncomplete
·       Scale 1 = For the wrong answer
·       Scale 0 = If there is no answer
The final score of the student =  (score of the student  the maximum of the score) x 4

Index of the score with scale 1-4 and 1-100
Convertion of the final score
Predicate
Classification of attitude
Information
Scale 1-100
Scale 1-4


86 – 100
4,00
A
Exelent
81 – 85
3,66
A-

76 – 80
3,33
B+
Good
71 – 75
3,00
B

66 – 70
2,66
B-

61 – 65
2,33
C+
Enough
56 – 60
2,00
C

51 – 55
1,66
C-

46 – 50
1,33
D+
Less
0 – 45
1
D