LEARNING IMPLEMENTATION PLAN (RPP) about buffer solution

LEARNING IMPLEMENTATION PLAN (RPP)

Education units           : Senior High School
Subjects                     : Chemistry
Class / semester         : X / I
Subject matter            : Buffer Solution
Time allocation           : 3 weeks x 4 Hours lesson

I.          CORE COMPETENCY

C1       : Living and practicing the religious teachings it embraces

C2       : Living and practicing honest, disciplined, responsible, caring (polite, cooperative,

             tolerant, peaceful) behavior, courteous, responsive and pro-active and showing attitudes as part of 
             the solution to problems in interacting effectively with the social and natural environment and in 
             placing themselves as a reflection of the nation in the association of the world.

C3       : Understanding, applying, analyzing factual, conceptual, procedural knowledge based

             on his knowledge of science, technology, arts, culture, and humanities with the insights of humanity, 
             nationality, state and civilization on the causes of phenomena and events, and applying procedural 
             knowledge to the field of study Which is specific to his or her talents and interests to solve problems

C4       : Processing, reasoning, and recruiting in the realm of concrete and abstract realm related to the 

             development of the self-study in the school independently, and able to use methods according to 

             scientific rules.

II.             BASIC COMPETENCIES

1.1         Recognizing the regularity of hydrocarbons, thermochemicals, reaction rates, chemical equilibrium, solutions and colloids as a manifestation of the greatness of God and the knowledge of such order as the result of creative human thought which is tentative.

2.1         Demonstrate scientific behavior (curiosity, discipline, honest, objective, open, able to distinguish facts and opinions, resilient, conscientious, responsible, critical, creative, innovative, democratic, communicative) in designing and experimenting and discussing embodied In everyday attitude. Demonstrate scientific behavior (having curiosity, discipline, honest, objective, open, able to distinguish facts and opinions, resilient, meticulous, responsible, critical, creative, innovative, democratic, communicative) in designing and conducting experiments and discussions embodied in Everyday attitude.

2.2         Demonstrate cooperative, courteous, tolerant, cintadamai and care about the environment and thrifty in utilizing natural resources.

2.3         Demonstrate responsive and pro-active and prudent behavior as a form of problem-solving ability and decision-making

3.1         Analyze the role of buffer solutions in the body of living things

4.1         Design, perform, and conclude and present experimental results to determine the nature of the buffer solution.

III.            INDICATOR
1. Mention the nature of the buffer solution.
2. Calculating the pH of the Buffer Solution.
3. Analyze the role of buffer solutions in the body of living things.

IV.            LEARNING OBJECTIVES
After studying this material, learners are expected to be able to:
1. Mention the nature of the buffer solution.
2. Calculating the pH of the Buffer Solution.
3. Analyze the role of buffer solutions in the body of living things.

V.             LEARNING MATERIALS
Buffer Solution

VI.            LEARNING METHODS
1. Question and answer
2. Discussion
3. Inquiri
4. Assignment

VII.            MEDIA AND MATERIALS
1. Media          : ----
2. Material       : Hand out, chemical textbooks and LKS

VIII.            ACTIVITY STEPS

Details of Time activity	Time
PRELIMINARY Students answer teachers' greetings, pray, and condition themselves to be ready to learn  Students and teachers ask questions about the universe. Students listen to learning objectives and explain the benefits of mastering the learning materials. Students listen carefully to the coverage of learning materials.	10 minutes
CORE ACTIVITIES Observe Seek information from various sources about buffer solutions, the properties and pH of buffer solutions and the role of buffer solutions in living organisms Looking for information about blood related to its ability to maintain the pH of acid or base addition and dilution Ask Ask the question how buffer formation is formed Why the pH buffer solution is relatively unchanged with the addition of a bit of acid or base What are the benefits of buffer solutions in the bodies of living things Data collection Analyzing the formation of buffer solution   Analyze the nature of the buffer solution Designing experiments to find buffer solutions or non-buffer solutions using a universal indicator or pH meter and to present the results of a racangan to equate perceptions Design an experiment to determine the nature of the buffer solution or non-buffer solution with the addition of a bit of acid or base or when diluted and present the design result to equalize the perception Conducting an experiment Observe and record observational data Associate Process and analyze data to infer buffer solutions Determine the pH of the buffer solution by calculation Determine the graph of the relationship of pH price changes to acid-base titration to explain the nature of the buffer solution Communicate Make a salt identification experiment report and present it using the correct grammar Communicate the nature of buffer solutions and the benefits of buffer solutions in living organisms.	70 minutes
COVER Students conclude the material that has been learned Students reflect mastery of the material that has been learned by making a record of mastery of the material. Students evaluate learning. Students give each other feedback on learning outcomes that have been achieved. Students agree on portfolio duties to be performed in relation to compiling observation reports on different topics but still related to the universe	10 minutes

IX.            ASSESSMENT

1.    Mechanisms and procedures

Assessment is done from process and outcome. Assessment process is done through liveliness (active discussion, communicating and asking). While the results assessment is done through written test.

2.    Sample Instruments (Attached)

X.            APPENDIX

1.    Tasks

a.       Make a report on observing the nature of the buffer solution

b.      Buffer Buffer Configuration Experiment

2.    Observation

3.    Portfolio
Observation report

4.    Written test of description:

1)      A total of 690 mg HCOOH and 566 mg of HCOONa dissolved in water up to 100 mL of solution. Ka HCOOH = 1.8 x 10-4

a.        Determine the pH of the solution

b.      If the solution is added to 1 mL of Ba (OH) 2 0.25 M solution, what is the pH of the present solution?

c.       If the added is 1 mL of a 0.25 M H2SO4 solution, what is the pH?

2)      Calculate the pH of the solution prepared by mixing 50 mL of 0.1 M CH3COOH solution with 50 mL CH3COONa 0.1 M (Ka = 10-5) solution

3)      Mention the inner buffer component

a.       The outer liquid of the cell

b.      Intra-cell fluid

Key answers and scoring scores

Number	Answer	Score
1	a.                   pH = 3,49 b.                  pH = 3,53 c.                   pH = 3,45	1 correct answer score 2 Maximum score of 6
2	pH = 5	1 correct answer score 2 Maximum score 2
3	a.                   H2PO4- - HPO42- b.                  H2CO3 – HCO3-	1 correct answer score 1, total score maximum 2
	Maximum score	10

5.      KKM Follow Up B
1) Learners whose value is less than KKM in remedy
2) Learners whose value is more than KKM are enriched