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.

Slides:

Advertisements

Similar presentations

Ch. 8. pH Scale  Used to measure how acidic or basic a substance is  Ranges from 0-14.

Advertisements

King Distinguish between acids and bases and use indicators (including litmus paper, pH paper, and phenolphthalein) to determine their relative.

Acids and Bases. Acids Acids are substances that release hydrogen ions, H +, in solution Acids are substances that release hydrogen ions, H +, in solution.

PH. pH—Scale to measure how acidic or basic a solution is 0-14 Pure water is 7 and neutral (not an acid or base) Acids—less than 7(lower number more acidic)

Acids, Bases, and Salts By Alicia Zelin Chen. Contents 1.Main Idea 13. THANK YOU!!! 2.Vocabulary 3. Summary of Lesson 4. Acids 5. Bases 6. pH 7. Salts.

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

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.

Pg of composition notebook.  Acid: Substance that donates Hydrogen ions (H + ) to a solution.  Or forms H 3 O + (hydronium ions) with water 

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

RED CABBAGE PH INDICATOR. THE PURPOSE OF THIS EXPERIMENT IS TO SHOW HOW TO MAKE YOUR OWN PH INDICATOR USING CABBAGE JUICE.

Acids and Bases Chapter 15. Acids a substance which when added to water produces hydrogen ions (H + ) hydronium (H 3 O + ) is created Water + Hydrogen.

Acids are electrolytes that: þ Produce H + (as H 3 O + ) ions in water – always listed first in the formula þ Turn blue litmus red þ Taste sour þ Corrode.

Acids and Bases Chapter 3 Sections Pages

1 Acids and Bases. 2 Acids React with certain metals to produce hydrogen gas. React with bicarbonates to produce carbon dioxide gas Have a bitter taste.

1 The Chemistry of Acids and Bases. 2 Some Properties of Acids þ React with certain metals to produce hydrogen gas. þ React with carbonates and bicarbonates.

 Acids and Bases 8 th gr. Chemistry. Acids  Forms hydronium ions H 3 O+ when reacting with water  Sour taste  Corrosive  Conducts electricity  Can.

Acids  Substances that donate hydrogen ions (H + ) to water to form H 3 O +  Called the hydronium ion  Examples of Acids  HCl hydrochloric acid used.

Acids / Bases Foster ESS Study this for the Quiz.

Chapter 8 Acids, Bases, and pH.

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

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.

+ 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.

Acids & Bases. pH scale Ranges from 0-14 Ranges from – 6 = Acid 0 – 6 = Acid 0 is most acidic 0 is most acidic Concentration of H + (hydrogen or.

Bell Work Start a new page in your Science Notebook, (Page 22) Title it: pH: Color Changes with Acids and Bases Don’t forget to put it on your Table of.

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.

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

PH Review. The cause of a substance being acidic is… 20 1.pH pH Many Hydroxide ions 4.Many Hydrogen ions

H+ Acids and Bases OH-.

Acids & Bases. pH scale Ranges from 1-14 Ranges from – 6 = Acid 1 – 6 = Acid 1 is most acidic 1 is most acidic Concentration of H + (hydrogen)

Acids and Bases.

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.

Section 3-2 Acids and Bases. Terms to know Indicator: a substance that changes color in the presence of an acid or a base Corrosive: destroys body tissue,

Chapter 10 Chemical Compounds

Science Survey ACIDS AND BASES. ACIDS Acids donate H+ ions to form hydronium ions, H when dissolved in water. Acids have a pH of less than 7. pH=

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.

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.

1. ACIDS AND BASES Name some acids and bases that are familiar to you. 2.

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.

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

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.

Acids and Bases Name some acids and bases that are familiar to you.

Acids & Bases. Indicators Indicators contain certain dyes which change color at various pH values. Indicators contain certain dyes which change color.

 You go to a grocery store to purchase lemons, milk, tomatoes, and soap.  Have you purchased any items that are acidic, neutral, or basic?  An indicator.

Acids & Bases 7.5.6: Distinguish between acids and bases and use indicators (including litmus paper, pH paper, and phenolphthalein) to determine their.

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.

19-2 Describing Acids and Bases

Acids and Bases Chapter 3 Section 2 p Vocabulary: 1. acid 2. indicator 3. base.

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.

Notes # 2 acids, bases and ph.

Laboratory Tests pH and the pH scale.

The Chemistry of Acids and Bases

Acids and Bases.

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.

7.P.2B.3 Analyze and interpret data to compare the physical properties, chemical properties (neutralization to form a salt, reaction with metals), and.

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.

#29 ACIDS, BASES, and pH.

Acids and Bases Mrs. Leos.

The Chemistry of Acids and Bases

Describing Acids and Bases

Describing Acids and Bases

Acids and Bases.

Presentation transcript:

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 þ pH is less than 7 þ Turns blue litmus paper to red “Blue to Red A-CID”

Why the symbol for soda? Acetic acid (vinegar) Ascorbic acid (lemon juice) Hydrochloric acid (stomach acid) Examples of Common Acids

Properties of Bases  Produce OH - ions in water (hydroxyl ions)  Taste bitter, chalky  Are electrolytes  Feel soapy, slippery  pH greater than 7  Turns red litmus paper to blue “Basic Blue”

Properties of Bases Many household products contain bases Strong bases can be dangerous

Properties of Bases Bases can help to ease the effects of too much stomach acid They are conveniently called ANTACIDS

Examples of Common Bases  Bleach  Laundry detergent  Shampoo  Soaps, toothpaste  Tums, Alka-Seltzer (antacids)

Water - an acid or base? Water is neither acidic or basic – it is the only substance that is naturally neutral. pH = 7 (neutral)

Litmus Paper A base will turn litmus blue An acid will turn litmus red

Acid-Base Reactions A reaction between an acid and a base is called a neutralization

The pH scale is a way of expressing the strength of acids and bases. pH 1-6 = acid pH 7 = neutral pH 8-14 = base

pH Scale A pH lower than 7 is acidic A pH higher than 7 is basic (alkaline) If the pH is 7, the solution is neutral

pH indicators Indicators are dyes that can be added that will change color in the presence of an acid or base.