19-2 Describing Acids and Bases

Slides:

Advertisements

Similar presentations

PH. Acids Anything that produces H 3 O+ ions if dissolved in water Taste sour Turns blue litmus paper red When acids dissolve in water, it donates a H+ion.

Advertisements

Acids, Bases, and Solutions

General Properties Indicators Neutralization Reactions

Intro to Acids & Bases General Properties Indicators Neutralization Reactions.

Acids, Bases, and pH. Acids and Bases Acids produce H + ions which react with water to form hydronium (H 3 O + ) ions Bases produce OH - ions.

Chemistry Notes: Acids and Bases

Unit: Chemical Interactions Chapter 8: Solutions When substances dissolve to form solutions, the properties of the mixture change. 8.1: A solution is a.

Acids and Bases. Properties of Acids: Properties of ACIDS: 1. tastes sour.

Acids, Bases, and the pH scale. Acids Acids pH of 0 - < 7 pH of 0 - < 7 React with metals and Bases React with metals and Bases Tend to taste sour Tend.

Acids, Bases, and pH Chapter 9 Section 1.

Standard 5.a- Students know the observable properties of acids, bases, and salt solutions. 2/22/12.

Chapter 9 Section 1.  D12 - Explain the chemical composition of acids and bases, and explain the change of pH in neutralization reactions.

The chemical of life. Acids Sour taste, leaves burning sensation Increase hydrogen ions (H+) in solution.

Acids and Bases Chapter 6.3 & 6.4.

ACIDS AND BASES. ACIDS & BASES Acids are substances that produce hydrogen ion in solution. (H + (aq) ) Bases are substances that produce hydroxide ions.

pH, Acidic and Basic Solutions

Acids, Bases, Salts and pH Physical Science. Acids Acids are chemicals in which the positive ion is a hydrogen atom. n for example; HCl or H 2 SO 4 n.

Chapter 3: Acids, Bases, & Solutions solution- a mixture containing a solvent and at least 1 solute and has the same properties throughout. solvent- the.

LEQ: What techniques in the lab setting will be used to identify acids and bases?

Acids and Bases.

ACIDS AND BASES Sections 8.3 and 8.4. Acids A acid is a compound that produces hydronium (H 3 O + ) ions when dissolved in water. Examples: HCl – hydrochloric.

Objectives To learn about reactions between strong acids and strong bases To learn about the reaction between a metal and a nonmetal To understand how.

ACIDS AND BASES EVERYDAY REACTIONS. WHAT ARE ACIDS? AN ACID IS A CHEMICAL THAT REACTS WITH A BASE TO PRODUCE A SALT AND WATER. SOME ACIDS ARE STRONG AND.

Acids, Bases, & pH. I. Macroscopic Properties Easily Observable A. Acids taste sour, bases taste bitter B. Bases feel slippery (soap) C. Acids & Bases.

Acids and Bases Chapter 3 Sections Pages

Acids and Bases. Properties of Acids þ Produce H + (hydrogen) ions in water þ Taste sour þ Corrode metals þ React with bases to form a salt and water.

Integrated Science II. Question What is the pH of pure water?

Acids and Bases. A. Definitions 1. Acid releases hydrogen ions (H + ) 2. Bases release hydroxide ions (OH - ) 3. pH scale – measures how acidic or basic.

COMMON SENSE IS LIKE DEODORANT, THE PEOPLE WHO NEED IT THE MOST NEVER USE IT.

Acids/Bases and the pH Scale

Acids and Bases PS-3.8 Classify various solutions as acids or bases according to their physical properties, chemical properties (including neutralization.

Describing Acids and Bases. Properties of Acids In order to identify an acid, you can test its properties. Acids are compounds whose characteristic properties.

Properties.  They taste sour (don’t try this at home).  They can conduct electricity.  Can be strong or weak electrolytes in aqueous solution  React.

Chapter 8 Acids, Bases, and pH.

ACIDS and BASES Target: I will be able to define what makes something an acid or a base. I will be able to tell on a pH scale if something is an acid or.

Acids and Bases Acids and Bases. Acids Have a sour taste. Vinegar is a solution of acetic acid. Citrus fruits contain citric acid. React with certain.

EQ: How can we use acids and bases in our everyday lives?

Acids and Bases and pH How can we use acids and bases in our everyday lives?

Chapter 25 Acids and Bases. Acids Contain at least one hydrogen atom that can be removed when the acid is dissolved in water Example: HCl (hydrochloric.

Acids contain hydrogen are electrolytes turn blue litmus paper red neutralize bases taste sour solutions react with active metal (Fe/Zn) to produce H.

Acids and Bases in Solution. Acids  An acid is any substance that produces hydrogen ions (H+) in water.  Hydrogen ions cause the properties of acids.

ACIDS, BASES, & pH MAIN IDEAS 1.ACIDS 2.BASES 3.pH SCALE 4.BUFFERS Objective SWBAT explain the properties of acids and bases utilizing indicators with.

Acids, Bases, and Salts Get to know them!. Facts about Acids and Bases An acid is a substance that produces Hydrogen Ions ( H + ). A bases is a substance.

Chapter 9 Lesson 3 ACIDS, BASES, AND SALTS. Vocabulary Acid: substance that tastes sour and turns blue litmus paper red when dissolved in water; releases.

 A homogeneous mixture that contains a solvent and a solute(s).  PARTS OF A SOLUTION :  1) SOLVENT : The part of that is present in the largest amt;

Acids and Bases Applied Chemistry. Acids  Definition: A substance that produces hydrogen ions (H + or H +1 ) in water.  General reaction in water: HA.

Acids, Bases and the pH scale. pH scale pH stands for “potential of Hydrogen” The pH scale is a range of values from 0-14 that express the concentration.

P.Sci. Unit 11 Cont. Solutions, Acids, and Bases Chapter 8.

Acids, Bases, and Salts. pH pH – measure of the concentration of H + ions in a solution or how acidic or basic it is. Scale ranges from 0-14 Strong acids.

Acids & Bases. What are Acids and Bases..? What do we think about when we hear the words acids or bases? Sometimes we tend to think of a chemistry laboratory.

Acids & Bases. The Chemistry of Acids and Bases Acid and Bases.

CHAPTER 25 ACIDS AND BASES. ACIDS Acid: a substance that produces hydrogen ions (H + ) in a water solution  The formula for an acid usually starts with.

Mrs. Brostrom Integrated Science.  An acid is any compound that increases the number of hydronium ions (H 3 O + ) when dissolved in water  The hydronium.

Acids and Bases. Have you ever wondered, “Why do foods taste sour or bitter?”

Acids and Bases. What are the properties of Acids? What is a property? React with metals React with carbonates Taste sour Turn blue litmus paper red.

Acids and Bases. Acid: Any substance that gives a H + ion when dissolved in water. –Results in an excess of H 3 O + (hydronium) ions in a solution.

Physical Science Chapter 9.2.  Create a sour taste in foods (lemons)  React with metals to produce hydrogen gas (H 2 )  Change color of blue litmus.

Properties of Acids and Bases Acids Bases *Taste sour*Taste Bitter *Turns blue litmus paper red*Turns red litmus paper blue *Reacts with metals*Produces.

Acids, Bases & pH. Acids Has positive hydrogen ions (H+) Has positive hydrogen ions (H+) Sour Taste Sour Taste Reacts with Metals and Carbonates Reacts.

Physical Science Chapter 23 ACIDS AND BASES.  Acid: A substance that produces hydrogen ions in a water solution.  The hydrogen ion then interacts with.

P in Prentice Hall Biology, Miller and Levine.

Unit 11 Acids and Bases. ACIDS Any substance that generates a hydrogen ion (H + ) when dissolved in water The pH of an acid ranges from 0-6; 0 is the.

An introductory powerpoint presentation on the study of acids, bases and related concepts.

Working with solutions Solutions and suspensions Suspension-a mixture in which particles can be seen and easily separated by settling or filtration Solution-

Acids, Bases & Salts Acids & Bases  Definitions  Properties  Uses.

The Chemistry of Acids and Bases

Describing Acids and Bases

Describing Acids and Bases

Acids and Bases.

Physical Science Chapter 23

Presentation transcript:

19-2 Describing Acids and Bases 19-3 Acids and Bases in Solution

Properties of Acids Sour taste Corrodes metals = chemical reaction that produces hydrogen gas and wears away the metal Etching Reactions with carbonates CO32- Produces carbon dioxide gas Used to test rocks for carbonates Reactions with indicators Indicator = changes color in presence of an acid or base Ex. Litmus

Properties of Bases Bitter taste Slippery feel Tonic water, soaps, shampoos, detergents Slippery feel Soap, shampoo, detergent Reactions with indicators Turns litmus paper blue Reactions of Bases Don’t react with carbonates to produce carbon dioxide

Acids in Solution All acids contain hydrogen ions In water acids separate into hydrogen ions and a negative ion HCl H+ + Cl- Acids turn blue litmus paper red An acid is any substance that forms hydrogen ions in water Litmus Paper

Bases in Solution All bases contain hydroxide ions (OH-) In water bases separate into positive ions and hydroxide ions NaOH Na+ + OH- Bases turn red litmus paper blue A base is any substance that forms hydroxide ions in water

Strength of Acids and Bases Strength = how many molecules separate into ions in water Strong = most molecules separate Weak = few molecules separate Strength determines safety. Weak acids are safe to eat/drink, but strong ones are dangerous

Measuring pH pH scale = range from 0-14 and expresses the concentration of hydrogen ions in a solution

Indicators Indicators determine the pH of a solution When the pH is low, the concentration of hydrogen ions is high

Main source of acid rain is nitrogen and sulfur oxides in pollution Effects of acid rain on forest (trees without leaves) and statue before and after being subjected to acid rain

Acid Base Reactions Neutralization = acid mixed with a base Neutralization reaction produces water and a salt (water is pH 7, neutral)