This is the 3rd lesson in the series, acids and bases. Free acid base chemistry books download ebooks online. This printable ph scale includes pictures of common household items to familiarize students with acids and bases. Ncert class 10 science lab manual ph of samples cbse tuts. Now the first question is what does ph stand for and it turns out that theres some debate why we have this lowercase p here, we know why we have the h, and some people will tell you it stands for power of hydrogen, the capital h for hydrogen. A comprehensive database of more than 12 ph scale quizzes online, test your knowledge with ph scale quiz questions. The standard solutions are called buffers, and the ph values assigned to them define the ph scale. Chemistry 11th project on ph scale acid buffer solution. Chemistry key terms include ph scale, acids, bases, neutrals and litmus paper. The ph scale gives a measure of the concentration of positive hydrogen ions in a solution. It has an example of a substance that has the ph indicated.
The use of scientific notation to describe ion concentrations is somewhat cumbersome, and chemists have agreed to employ a ph scale to state the concentration of hydronium ions the capital h in ph stands for hydrogen. Fill in the missing information in the table below. Introductory chemistry is intended for a onesemester introductory or preparatory chemistry course. Both ph and poh are two methods that we use to describe the strength of acids, alkali, or ionisable saltseg. Two home treatment methods to adjust ph are acid neutralizing filters and chemical feed pump systems injecting a.
Ppt acids, bases, salts and ph powerpoint presentation. The relationship between acid strength and the ph of a solution. They have there own unique traits, acids taste sour, turn litmus red while bases taste bitter and turn litmus blue. Textbooks for high school students studying the sciences chemistry grades 10 12 version 0 november 9, 2008. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ionwhich ordinarily ranges between about 1 and 10. The ph scale is a number scale that indicates how acidic or basic a. Take good care of this textbook this textbook is the property of your school. Check the description on youtube to find the time stamps for each part. Salt buffers can help solutions be more resistant to ph change.
Visualize the relative number of hydroxide ions and hydronium ions in solution. Acidbase indicators are described and used to identify substances as acids or bases. Our online ph scale trivia quizzes can be adapted to suit your requirements for taking some of the top ph scale quizzes. Fundamentals of chemistry doehdbk1015193 characteristics of atoms rev. Ball of cleveland state university brings his new survey of general chemistry text, introductory chemistry, to the market with a fresh theme that will be sure to hold student interest. I also added a section with a ph scale which uses common items in relation to their ph. Aqueous solutions of alkalis contain hydroxide ions oh. May 30, 2016 learn the basics about the ph scale, universal indicator and litmus paper. Chem1 general chemistry reference text 4 introduction to acidbase chemistry 5 the ph scale in which the square brackets refer to the concentrations of the substances they enclose. Interpretation of ph, acidity, and alkalinity in aquaculture and fisheries claude e. Substances that have a ph level of less than 7 are acidic in nature. It is common that the ph scale is argued to range from 014 or perhaps 114, but neither is correct. To be successful you will need to make sure you are. Acids and bases are two groups of chemical compounds that generally have opposite characteristics.
Chemistry preliminary course 2011 2 lecture topics. The international union of pure and applied chemistry iupac has a slightly different ph scale that is based on electrochemical measurements of a standard buffer solution. Chemistry 1 2 creative commons license images and tables in this file have been used from the following. Notes on acid base chemistry pdf 28p this note contains the following subtopics of acidbase chemistry, bronstedlowry and lewis acidsbases acid dissociation constants, pka, the relative strength of acids and bases, equilibrium in acidbase reactions and molecular structure and acidity. Indicators tells if something is acidic, alkaline or neutral. The ph scale is a measurement of the acidity or alkalinity of a solution. Secondly, whilst retaining undiminished the full and clear directions provided for students who are starting the study of practical organic chemistry, we have extended the scope of the work so that it covers most of the needs of students working for an honours or special degree. The ph scale can be represented horizontally or vertically. Free powerpoint presentations about ph scale for kids. Web to pdf convert any web pages to highquality pdf. The ph scale is logarithmic and therefore ph is a dimensionless quantity.
Universal indicator, blue litmus paper and red litmus paper. A brief overview of ph definition, principles, and methods of measurement as well as of some applications in environmental, biological, and food chemistry are presented. Chemistry for the ib diploma second edition chemistry for the ib diploma chemistry for the ib diploma. The ph scale ranges from 1 to 14 where 1 to 6 is classified as acidic, 7 neutral neither a base or an acid and 8 to 14 is classified as basic. Describe one acid and one base that you are familiar with. It is apparent that the practical determination of ph requires standard solutions of known ph.
Use this chemistry resource as a class handout or as a transparency to enhance your lessons and increase student learning. Test the ph of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Petes powerpoint station is your destination for free powerpoint presentations for kids and teachers about ph scale, and so much more. The iupac ph scale also includes thermodynamic factors, which may influence ph. Students will learn about acids and bases through different stations. Because it is the measure of activities of hydrogen ions, the initials ph stand for potential of hydrogen. Chemistry lab manual class 10 introduction the chemicals used in lab, has its nature, which can be acidic, basic or neutral. Join researchgate to discover and stay uptodate with the latest research from leading experts in analytical chemistry and. Chemistry 11th project on ph scale free download as powerpoint presentation. Here is the definition of ph in chemistry, with examples of acidic and alkaline values of common household products and lab chemicals. The ph of a solution is a measure of its acidity or alkalinity base. Chemistry i our chemistry i class is an introductory chemistry class, but it may be a challenging class for you at the high school level because it makes you think in ways that you have not had to in other classes before.
The ph scale, from 0 to 14, is a measure of the acidity or alkalinity of a solution, and can be measured using universal indicator or a ph probe. The relative acidity or alkalinity of a solution is reported by the ph scale, which is a measure of the. Except for locations within cement creek, generally, ph levels were measured before the arrival of the contaminant plume and found to range between 6. Instructor what were going to do in this video is talk about acidity and in particular, were gonna talk about the ph scale. Save as the lab document with the lab name and your name ex. To know the ph of a substance, you need an indicator. Outlines how the acidity of water is measured and what makes solutions acidic or basic.
Dr mike lyons school of chemistry trinity college dublin. For most situations, the standard ph definition is sufficient. Throughout the chapters, david presents two features that reinforce the. Scientists measure the relative strength of acids and bases using the ph scale. The ph level of your drinking water reflects how acidic it is. The ph scale is logarithmic and as a result, each whole ph value below 7 is ten times more acidic than the next higher value. The definition of a primary method of measurement 1 has permitted a full consideration of the definition of primary standards for ph, determined by a primary method cell without transference. It is recommended that you download this pdf document and assignment to your computer desktop.
This means that every change of one unit on the scale represents a 10fold effect on the concentration of the solution. Free download organic chemistry, analytical chemistry, inorganic chemistry, biochemistry, physical chemistry, industrial chemistry, general chemistry, a level chemistry, igcse chemistry and other chemistry books in pdf. Investigate whether changing the volume or diluting with water affects the ph. Leaving certificate chemistry notes and worked solutions. Use pdf download to do whatever you like with pdf files on the web and regain control. A logarithmic scale the ph scale is a logarithmic scale. Substances that have a level of more than 7 are basic in nature. This lesson explains the ph scale and demonstrates how to use the ph scale and universal indicator to analyse samples. Because hydrogen sulfate is a weak acid, this problem becomes very similar to the last one see.
Take a look at this category of free ebooks and find all the answers to your questions immediately. For example, at a ph of zero the hydronium ion concentration is one. Free acid base chemistry books download ebooks online textbooks. Any solution with a ph less than 7 is by definitionacidic. Due to mathematical definition and calculation it is possible to get negative ph and ph above 14. Calculating the ph of a strong acid or base solution. Swbat classify substances as acids or bases using the ph scale, ph indicator, and litmus paper. Indicators and the ph scale season 1 episode 1102 24m 51s indicators and the ph scale. Every time you move up or down the ph scale by 1 ph unit, the concentration changes by 10x. This is a 3part lesson that you can work on over 23 days.
For each lab, download the word document version of the lab. They define ph to be the negative logarithm to base 10 of the hydronium ion concentration. Chemistry notes chapters 20 and 21 acids and bases neutralization goals. Chemistry preliminary course 2011 1 acidbase reactions the ph concept. These books are not hosted on our servers and these books are material of their respective publishersorganizations. You have probably used litmus paper, paper that has been treated with a natural watersoluble dye so it can be used as a ph indicator, to test how much acid or base alkalinity exists in a solution. The ph scale introductory chemistry 1st canadian edition. Cover the book with protective material, such as plastic, old newspapers or magazines.
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