LEARNING IMPLEMENTATION PLAN (RPP)

A. Basic Competencies and Indicators

Basic competencies	Indicator
3.6 Determining the shape of molecules by using the theory of electron valence shunt pair (VSEPR) or Electron Domain Theory	1. Explain the theory of electron domains 2. Applying the theory of electron domains in determining the shape of molecules 3. Explain the theory of electron valence skin pair rejection (VSEPR) 4. Determining the form of molecules based on the theory of repulsion of the valence skin pair of electrons (VSEPR) 5. Determining the nature of polarity based on molecular form
4.6  Make a model of molecular shape by using materials in the environment or chemical software	1. Applying the electron domain theory to predict the shape of the molecule 2. Make a molecular shape by using a balloon 3. Communicate the results of discussions about the molecular form.

B. LEARNING MATERIALS

1. Electron Domain Theory

2. Theory of Electrical Couple Calls (VSEPR)

3. Molecular shape

C. LEARNING ACTIVITY

1. First Meeting: (3 JP)

Indicator:

3.6:

1. Explain the theory of electron domains

2. Applying the theory of electron domains in determining the shape of molecules

3. Explain the theory of electron valence skin pair rejection (VSEPR)

4. Determining the shape of molecules based on the theory of repulsion of the valence skin pair of electrons (VSEPR)

5. Determining the nature of the celiber based on the form of molecules

4.6:

1. Applying the electron domain theory to predict the shape of the molecule

2. Make a molecular shape by using a balloon

3. Communicate the results of discussions about the molecular form.

A. Activity Introduction

ü Teachers greet, pray, check student attendance

ü Apperception:

1. Delivering the GPA

2. Questions about covalent bonds, image impressions between water in glass and carbon dioxide gas.

ü Motivation: Observing images of CH4 molecular shapes; H2O; NH3 and CO2

B. Core activities

No.	Sistax / Stages of Learning	Description of Learning Activity
1.	Stimulasi (pemberian stimulus)	• Given 4 images of molecular forms of compounds H2O, CO2, NH3 and CH4. • Students observe the molecular form of several compounds through images / molymod / animation.
2.	Problem Statement (Identifikasi Masalah)	• Students are expected to ask: - why are the four molecules of the four compounds different? - How to determine the molecular shape of a compound? - What is the relationship between molecular form and the polarity of the compound?
3.	Data Callecting (Mengumpulkan Data)	• Students review the literature on electron domain theory and VSEPR theory • Students conduct group discussions to conclude electron domain theory and VSEPR theory • Students conduct class discussions of literature review and group discussion to equate perceptions about electron domain theory and VSEPR theory • Review the literature to predict the shape of molecules and relate the relationship of molecular shape to the polarity of the compound.
4.	Data Proccesing (Mengolah Data)	• Students work on LKS about molecular form by way of group discussion
5.	Verification (Menguji  Hasil)	• Students can understand the shape of molecules through information discussions with teacher guidance
6.	Zeneralication (Menyimpulkan)	• Students can define molecular shapes based on electron domain theory and VSEPR theory • Students can determine the polarity of the compound based on the molecular shape

 C. Closing Activity

ü Students do the exercises about the material being studied.

ü Students are assigned to create molecular models of materials in the surrounding environment or chemical software

D. TEHNIK ASSESSMENT

1. Knowledge: Written Problem PG and Description (Attached)

2. Skills: Performance makes the molecular shape of the balloon

E. Media / tools, Materials, and Learning Resources

1. Media / tools: molymode, LKS and Power Point

2. Material: balloon

3. Learning Resources: Chemical Handbook volume 1 and relevant supporting books

Learning materials

To understand the theory of VSEPR we use balloons, when tied between two balloons, the balloon will form linearly, if three or four balloons form a flat or tetrahedral triangle.

The basic shape of a molecule is determined by the number of pairs of electrons present in the central atom. There are five basic molecular shapes of a compound, namely:

1. Linear

2. Flat Triangle

3. Tetrahedral

4. Trigonal Bipiramida

5. Oktahedral

   The molecular forms are symmetrical, if a compound having the number of electron pairs in the central atom is the same as the basic molecular form, but has a different shape. This is due to differences in the composition of PEI and PEB of the electron pairs present in the central atom. So that the basic (symmetrical) molecular shape is distorted into different and unsymmetrical molecular shapes.