Acids and bases grade 12 caps notes pdf

Siyavulas open physical sciences grade 12 textbook, chapter 9 on acids and bases covering acids and bases. The table below summarizes some properties that will be helpful as we learn more about acids and bases. Firstly you must make sure that you study the terms and definitions provided for each topic. For example, hydrochloric acid hcl, sulphuric acidh 2 so 4, nitric acidhno 3. Chemistry notes chapters 20 and 21 acids and bases neutralization goals. Can we provide a general definition of acid and base. This video of students studying acids and bases shows that some students have made significant progress toward this learning objective, and serves as a model to the rest of the class that this is a manageable task. Introduction to acidbase chemistry a chem1 reference text stephen k. On this page you can read or download acids and bases grade 12 pdf in pdf format. Exam sections include interpreting diagrams, multiple choice, and written response. The taste of the food is due to presence of acids and bases in them. Acids, bases and salts this chemistry quiz is called acids, bases and salts and it has been written by teachers to help you if you are studying the subject at high school.

The unit includes seven learning activities aimed at lower second level students, aged 1215 years. To wrap this lesson up i ask if any students have learned the names of the acids and bases. Physical sciences grade 12 table of contents siyavula. Chemistry notes for class 12 chapter 3 electrochemistry electrochemistry is that branch of chemistry which deals with the study of production of electricity from energy released during spontaneous chemical reactions and the use of electrical energy to bring about nonspontaneous chemical transformations. Acids ph less than 7 have a sour taste change the color of many indicators are corrosive react with metals neutralize bases conduct an electric current bases ph greater than 7 have a bitter taste change the color of many indicators. Eleventh grade lesson introduction to acid base theory. In this live gr 12 physical sciences show we take a look at acids and bases.

Feb 26, 2012 acids and bases hydrochloric acid sodium hydroxide. Perhaps the easiest way to start is to list some of the properties of acids and bases. Grades 9 and 10 chemistry high school acids, bases and. Acids and bases 2 science notes jclearn 2 p a g e acids and bases 2 the two most common laboratory acids are hydrochloric acid hcl and sulfuric acid h 2 so 4. This chemistry quiz is called acids, bases and salts and it has been written by teachers to help you if you are studying the subject at high school. It is important to have a definition so that acids and bases can be correctly identified in reactions.

Indicators in this lesson we find out that chemical indicators can be used to distinguish if a substance is an acid or a base or if it is neutral. Swbat classify substances as acids or bases using the ph scale, ph indicator, and litmus paper. Cover the book with protective material, such as plastic, old newspapers or magazines. C12507 distinguish between strong and weak acids and bases. Substances that had a bitter taste, made skin slippery on contact, and reacted with acids were called bases. Acids acids are compounds which give hydrogen ion in water solution. In general, strong bases dissociate, bases such as ammonia and organic amines ionise. Acids and bases lesson plan jerel ray perez anderson high school pre. Using a computer, bring up the powerpoint file basic chemistry part 2 iii. Dna the molecule of lifedna the molecule of life hidden in all life is ahidden in all life is a unique codeunique code this code is in the. Chemistry 12 notes on unit 4 acids, bases and salts chemistry 12 unit 4 notes page 2 any acid weak or strong could have high or low concentration. Chemistry preliminary course 2011 2 lecture topics. Assess students knowledge and understanding of acids and bases with this printable test on electrolytes, ions, the ph scale, litmus paper, and chemical reactions.

An acid and base are not two totally separate chemicals but are related. In this lesson we discuss the definitions of acids and bases. In grade 11 learners were introduced to a lot of the concepts that are expanded on in this chapter. Gr 12 term 2 physical science content booklet dd national. Learn chemistry grade 12 acids bases with free interactive flashcards. Iii properties of an acid a tastes sour b conduct electricity c corrosive, which means they break down. We will then look at acids and bases in the laboratory and the basic properties of acids, bases and neutrals. Organic acids are always weak but minerals acids can be strong as well as weak. Acids and bases hydrochloric acid sodium hydroxide. I then randomly call on students to provide answers for the reading. Acids is defined as the one which produces hydrogen ions in water. This is used as confirmation test for the presence of acid.

Chapter 12 acidbase chemistry introduction the terms acid and base have been used for several hundred years. Contain a large amount number of moles of acid base in proportion to the volume of water. A salt is a product that is made up of the from a and the from an. Grades 9 and 10 chemistry high school acids, bases. Acids donate protons, bases accept them physical and chemical properties of acid and base acids bases taste sour citric acids. Acids and bases 1 list at least three characteristic properties of acids and three of bases.

In this section of the lesson i build on the introduction to acids and bases from the lab by having students take notes. We use this information to present the correct curriculum and to personalise content to better meet the needs of our users. Given the ph of a solution and the pka for a particular acid, determine the relative concentrations of the acid and base forms of the conjugate pair. The two most common laboratory bases are sodium hydroxide naoh and calcium hydroxide caoh 2. Acids and bases test assess students knowledge and understanding of acids and bases with this printable test on electrolytes, ions, the ph scale, litmus paper, and chemical reactions. On this page you can read or download acid and base chemistry grade 12 2016 practical investigation in pdf format. Choose from 500 different sets of chemistry grade 12 acids bases flashcards on quizlet. A substance base which ionizes or dissociates 100% in solution. A salt is a neutral ionic compound composed of cations and anions. Physical sciences p2 chemistry gr 12 3 fs2017 terms, definitions, questions and answers how to use this document dear grade 12 learner 1. Acids and bases react with one another to yield two products. It comes from the latin word acidus that means sharp or sour.

In this chapter learners will look at acids and bases. Mineral acids acids that prepare from mineral are known as mineral acids inorganic acidsmanmade acids or synthetic acid, such as hydrochloric acid hcl, sulphuric acid h 2 so 4, nitric acid hno 3, etc. If you dont see any interesting for you, use our search form on bottom v. Bronstedlowry bases are not arrhenius bases, but all arrhenius bases contain the bronstedlowry base oh. Common properties of salts, such as sodium chloride nacl. Amphiprotic substances are amphoteric substances that are bronstedlowry acids and bases. That is, a large percentage of the moles of a strong acid or base will form ions when added to water.

Chemistry notes for class 12 chapter 3 electrochemistry. A large percentage of molecules in a strong acid or base dissociate or ionise to form ions in solution. Study these notes and all youll have left to do is practise. Grade 12 physical science paper 2 chemistry study notes including necessary revision from grades 911, required diagrams, and all work needed for the ieb curriculum. Dec 20, 2015 on this page you can read or download acids and bases grade 12 pdf in pdf format. In this lesson we discuss properties of acids and bases, we list common acids and bases, we define acids and bases, we discuss conjugate acidbase pairs and. Pass out the handout acids, bases, and the ph scale. Revision notes on acids, bases and salts askiitians.

Bases produce hydroxide ions in aqueous solutions b. Acids produce hydrogen ions in aqueous solutions 2. In grade 10 science s2208, students experimented to classify acids and bases according to their characteristics. The next section deals with some models used to describe acids and bases. Have your lesson plans or teaching notes ready to work from. Take good care of this textbook this textbook is the property of your school. Some people suggested applying the paste of baking soda while others suggested of lemon juice as remedy. If the base contains hydroxide ions, then water will also be formed.

The acids, bases, salts sails inquiry and assessment unit was developed by the team at the university of piraeus research centre uprc, as part of the sails project. A strong acid or base is one that will almost completely dissociate or ionise to form ions in solution. The word salt is a general term which applies to the products of all acidbase reactions. The unit includes seven learning activities aimed at lower second level students, aged 12 15 years.

Acids were substances that had a sour taste, were corrosive, and reacted with substances called bases. The following is a part of a sequence of amino acids that form a particular. Ap chemistry 90 minutes objective student will formulate their own learning of acids and bases by completing a writing assignment tying previous knowledge of chemistry to new concepts. Bases are substances that dissociate in solution to produce ohions. Acid base theories and conjugate acid base pairs this lesson focuses on the different acid base theories as well as conjugate acid base pairs. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Sodium hydroxide is commonly called caustic soda and is used to clear blocked drains. Printable acids and bases test for chemistry, grades 612. Siyavulas open physical sciences grade 12 textbook. For example, sulphuric acid, hydrochloric acid etc. The first phase is an introduction to the concepts of acids, bases and salts.

They take notes on their notes graphic organizer while i present information on the powerpoint i begin with having students write down properties of acids and base which i show on slides 2 and 3. Acids can dissolve in water to form solutions which conduct electricity. All acids contain hydrogen, but not all hydrogencontaining compounds are acids e. Chemistry notes chapters 20 and 21 acids and bases. Ninth grade lesson introduction to acids and bases. We can take dilute weak acids like organic acid in our body. Students were introduced to hydrochloric, sulphuric, and nitric acids, as well as to some bases, such as sodium hydroxide and calcium hydroxide. Identify the conjugate acid base pairs in the reaction. Life sciences grade 12 session 1 learner notes page 5 of 55 question 2. Concentration a the moles of acid dissolved per litre. Aug 22, 20 in this lesson we discuss properties of acids and bases, we list common acids and bases, we define acids and bases, we discuss conjugate acidbase pairs and finally we discuss ampholyets. We will study these concepts in more detail during the main lecture course later on. This can be used as a guide and a summary of your textbook. While playing in a park, a child was stung by a wasp.