Day 14 – Identification of Acids and Bases and pH Scale

Slides:

Advertisements

Similar presentations

PH and Titration Notes Chemistry. pH  measure of the strength of acids and bases  pH = power of hydrogen  pH = -log [H + ]  logarithmic scale – so.

Advertisements

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

Chapter 23 Acids, Bases, and Salts

Chapter 19 Acids, Bases, and Salts

Acids and Bases.

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 and Bases An Introduction Chapter 4 Nova Scotia Science 10.

Introduction to Acids and Bases. Acid A substance that produces hydrogen ions, H + (aq), when it dissolves in water. Sour-tasting and good conductors.

Unit 7 Acid/Base Chemistry and Chemical Reactions Chemistry I Mr. Patel SWHS.

Acids and Bases SC Physical Science Standard PS-3.8 Classify various solutions as acids or bases according to their physical properties, chemical properties.

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.

ACIDS, BASES, & SALTS ACIDS Contain hydrogen ions, H + also called hydronium ions, H 3 O + Taste sour (remember not to taste chemicals as a rule) Dangerous.

Acids & Bases Chapter Chapter 10 Chemical Compounds Ionic Compounds  Formed by oppositely charged ions  Metal and nonmetal  Properties  Brittle.

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

+ Acids and Bases. + Examples of Acids? + Examples of Acids lemon, vinegar, grapefruit. pop Lactic Acid found in your muscles Some animals use acid to.

Acids, Bases and Salts Ms. MacInnes 2010 Science 10.

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?

Acids and bases. Acids An acid is any compound that increases the number of hydrogen ions when dissolved in water Solution tastes sour Can change the.

PH notes pH = % Hydrogen. Many compounds are soluble (can dissolve) in water. When an ionic compound dissolves in water, ionic bonds are broken. As a.

Acids and Bases. Acids An acid is a substance that: An acid is a substance that: Tastes sour Tastes sour Oily feeling Oily feeling Reacts with metals.

SNC2P Acids and Bases. And neutralization reactions.

Identification of Acids and Bases and pH Scale Science 10 Ms. McGrath.

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

3.2 Acid and Bases. Acids and their properties An acid is any compound that increases the number of hydronium ions –Hydronium forms when and H+ separates.

P in Prentice Hall Biology, Miller and Levine.

Acids and Bases. Indentifying Properties Acids Sharp, sour, or tart taste Turn litmus paper red Phenolphthalein (liquid indicator) remains clear React.

Arrhenius acids Produce H + ions in solutions H + produced by acids is the only positive ion in acidic solutions Properties of acids are related to properties.

Acids and Bases.

Acids and Bases.

Acids & Bases Outcome: S Experiment to classify acids and bases using their characteristic properties. Include: pH, indicators, reactivity with.

3.2 Acid and Bases.

Acids, Bases, And the pH Scale.

Navjot Kaur Nathan Coffing Sapphira Darmawan Connor McDevitt

PH and Titration Notes Honors Chemistry.

The Chemistry of Acids and Bases

Acids and Bases Science 10.

Acids and bases.

Acids, Bases, & pH.

Acids and Bases.

Gr. 10 Academic – Chemistry Mr. Findlay

Acids And Bases 8.2.

Acids, Bases and Salts BASES ACIDS SALTS.

Describing Acids and Bases

ACIDS AND BASES.

Introduction to Acids and Bases.

Acids and Bases Science 10.

Acids and Bases.

2B.3 Notes Acids & Bases 10/29/18.

ACIDS AND BASES

Acids and Bases Pop Can Acids and Bases.

Acids and Bases Pg. 119.

Acids and Bases.

ACIDS AND BASES Chapters 15 and 16.

Solutions, Acid, and Bases

Unit 5: (2) Acids and Bases

Chapter 7 – Acids, Bases and Solutions

Acids and Bases.

Classifying Compounds.

Acids and Bases.

Acids and Bases.

Acids and Bases.

ACIDS AND BASES

Classifying Compounds.

Classifying Compounds.

Acids and Bases.

Acids and Bases.

Acids and Bases.

Presentation transcript:

Day 14 – Identification of Acids and Bases and pH Scale SCI 10 Chemistry

Examples of acids Lactic acid in muscles Digestive acids in the stomach Acids in certain fruits (pineapples, oranges)

Examples of bases Soaps and cleaning products Lidocaine (local anesthetic used by dentists)

How Can We Identify Acids & Bases? Many acids and bases look the same – transparent liquids How to tell them apart? Using indicators Indicator: a chemical that changes colour as the concentration of H+ and OH- changes i.e.: phenolphthalein and litmus

Indicators Phenolphthalein: Litmus (from lichens) In the presence of an acid: colourless In the presence of a base: pink Litmus (from lichens) Blue litmus turns red in the presence of an acid Red litmus turns blue in the presence of a base

The pH Scale (the power of H) pH: a scale that indicates the concentration of hydrogen A measure of the acidity of a solution 0 to 14: pH < 7 = acid pH > 7 = base pH 7 = neutral pH is found using pH paper or a pH meter

Highest concentration of OH- (Lowest concentration of H+) Highest concentration of H+ (Lowest concentration of OH-)

Characteristics of Acids & Bases p.160 Taste Feel Litmus paper With metals Conducts electricity pH

Reactions Between Acids & Bases ACID + BASE → H2O + SALT NEUTRALIZATION Neutral pH at the end Ex: Hydrochloric acid in stomach + Magnalax antacid magnesium hydroxide) 2HCl (aq) + Mg(OH)2 → 2H2O (l) + MgCl2