Acid and Base Reactions Unit 2 Chemistry. Common Acids  Occur naturally in fruits.  Produced by bacteria in milk (that is why milk turns sour).  Insects.

Slides:

Advertisements

Similar presentations

Intro to Acids & Bases General Properties Indicators Neutralization Reactions.

Advertisements

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.

PH is the measurement of the concentration of H+ ions in a solution. (Or how acidic or basic a solution is.) 1. The pH scale has a range from 1 to 14.

Chapter 9 Acids & Bases.

ACIDS, BASES, & THEIR SOLUTIONS The pH Scale Is a substance an acid or a base?

Chapter 9 – Acids and Bases BELLWORK Pure vinegar is an acid, called ________ acid.

Chemistry Notes: Acids and Bases

9.2 What are acids? An acid is a compound that dissolves in water to make a particular kind of solution. Chemically, an acid is any substance that produces.

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.

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

TCAP Review Lesson 17 Vocabulary Foldable (IX)

The pH Scale Is a substance an acid or a base?. ACIDS AAAAn acid is a compound that increases the number of hydrogen ions when dissolved in water.

Acids and Bases.

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

Acids, Bases & pH. What are Acids? Acids taste SOUR –Lemons, vinegar Compounds that have Hydrogen (H + ) as their cation. Examples: –HCl – Hydrochloric.

Acids & Bases. Learning Outcomes Experiment to classify acids and bases using their characteristic properties. (Ch 7) Include: indicators, pH, reactivity.

 Bonds of Water- strong › Can break into hydrogen ion (H + ) and hydroxide ion (OH - ) H 2 O  H + + OH -

 An acid is a substance that produces hydrogen ions (H + ) when in solution with water  Water (H 2 O) is made up of even amounts of H + and OH - ions.

Acids and Bases An Introduction Chapter 4 Nova Scotia Science 10.

Introduction to Acids and Bases Science 10. Introduction to Acids Do your muscles ever feel sore after a heavy workout? If so, you can blame a buildup.

Introduction to Acids and Bases Science 10. Introduction to Acids Do your muscles ever feel sore after a heavy workout? If so, you can blame a buildup.

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 Foster ESS Study this for the Quiz.

A c i d s B a s e s & S a l t s. Acid and Bases When we think of acids and bases we tend to think of chemistry lab acids and bases like But we are surrounded.

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

The pH Scale Is a substance an acid or a base? Acid Properties Donate H + ions Taste sour React with certain metals to produce hydrogen gas React with.

Chapter 8 Acids, Bases, and pH.

Acids and Bases The pH scale What do vinegar, lemons, and orange juice have in common?

Properties and Indicators

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

Acids, Bases and Solutions

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

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.

8.3 Properties of Acids and Bases Acid- a compound that produces hydronium ions (H3O) when dissolved in water. Examples: vinegar, carbonated drinks, stomach.

ACIDS AND BASES PH.

Acids & Bases I. Intro to Acids & Bases  Definitions  Properties  Uses.

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.

Acids and Bases Notes and Questions Ms. Haapala. Acids and Bases Standard 5 Acids, bases, and salts are three classes of compounds that form ions in water.

PROPERTIES OF: ACIDS Taste sour Blue litmus turns red Reacts with metals to make H 2 gas. Contains a H at the start of the formula(HCl, H 2 SO 4 ) BASES.

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 and Bases SPS6. Students will investigate the properties of solutions. d. Compare and contrast the components and properties of acids and bases.

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

Acids and Bases. Acids An acid is a substance that: An acid is a substance that: Tastes sour (dangerous) Tastes sour (dangerous) Oily feeling (dangerous)

P in Prentice Hall Biology, Miller and Levine.

Acids, Bases, & Salts. Acids  Acid= any compound that increases the number of hydrogen ions (H + ) (H 3 O + )when dissolved in water  Tastes sour 

1 What is pH?. Some of our favorite foods make our tongue curl up because they are SOUR. Some of our favorite foods make our tongue curl up because they.

Acids and Bases.

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

Acids and Bases Sour and Bitter.

Acids and Bases.

Lesson 4 Unit 2 Matter and its Properties

They are everywhere.. In your food In your house EVEN IN YOU!!!!!

1.2 Acids and Bases p

Introduction to Acids and Bases.

Acids and Bases Science 10.

Acid, Base, or Neutral.

Acids and Bases SPS6. Students will investigate the properties of solutions. d. Compare and contrast the components and properties of acids and bases.

Acids and Bases Hydrochloric Acid Sodium Hydroxide.

Acids and Bases Sour and Bitter.

Chapter 7 – Acids, Bases and Solutions

PH scale A. A measurement system to indicate the concentration of H+ (hydrogen ions) 1. The pH scale ranges from Water is made up of H+ and OH-

Acids and Bases.

I. Intro to Acids & Bases (p ) Definitions Properties Uses

Acids, Bases and Solutions

Acids and Bases Sour and Bitter.

Acids and Bases.

Acids and Bases When water dissociates,

Presentation transcript:

Acid and Base Reactions Unit 2 Chemistry

Common Acids  Occur naturally in fruits.  Produced by bacteria in milk (that is why milk turns sour).  Insects such as millipedes, scorpions and ants use acid to deter their predators.  Lemons.  Vinegar.  Stomach acid.  Lactic acid in your muscles: when you exercise and use up the oxygen in your muscles, lactic acid is given off as a byproduct of metabolism and when too little oxygen is available the lactic acid will build up and cause your muscles to feel heavy and sore.

Common Bases:  Bitter tasting compound with a slippery feel.  Most soaps and drain cleaners, window cleaners (ammonia).  Sea water is slightly basic. Most acids and bases dissolve in water. The delicate balance between acids and bases is vital for organisms (especially humans) to survive.

Lab Mock Apple Pie Bottle Rockets

Acids and Bases An Acid is:  a substance that produces hydrogen ions in a solution, H + (aq)  HCl (aq) + H 2 O (aq)→ H + (aq) + Cl - (aq)

Acids and Bases A Base is defined as:  A substance that produces hydroxide ions in a solution, OH - (aq)  NaOH (aq) + H 2 O (aq)→ OH - (aq)

Indicators Indicators: chemicals that change colour as the concentration of H + (aq) or OH - (aq) changes. Indicators change colour at specific concentrations of H+ ions in solution. They are used to measure the acidity of solutions. Electronic pH meters read the acidity directly.

Indicators Two common indicators are  Phenolphthalein  Litmus (extracted from lichens, plant-like member of fungi kingdom)  Natural indicators such as cabbage juice Litmus turns pink under acid conditions and blue in basic conditions.

pH Scale The pH scale is used to describe if a solution is an acid or a base A pH of 7 is neutral; that is, the concentrations of H+ and OH- are equal. A pH of is acidic A pH of is basic Textbook page 219

Acid Rain Uncontaminated rainwater has a pH of about 5.5 Rainwater with a pH below 5.5 is called acid rain because it is more acidic than normally would be expected naturally. Acid rain is affecting:  Non-living: buildings, monuments, stone structures.  The biosphere: lakes, rivers and oceans, fish and ocean species are at risk.  Plant life: trees, algae and other producers.

Indicator Lab- testing pH of common household substances