 Tell what the pH is for acids, bases, & neutrals.  Describe the basic differences between acids & bases. pH 2, acid or a base? pH 10, acid or a base?

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

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

Determine how to Balance pH 1.What pH would I add to neutralize a substance with a starting pH of 4? 2. What about starting pH of 14?

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.

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)

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.

825. Key concepts/skills: Level 1: Define key vocabulary. Level 2: Identify the basic properties of acids and bases and determine acid or base using litmus.

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

 Tell what the pH is for acids, bases, & neutrals.  Describe the basic differences between acids & bases. pH = pH = pH 7 =

Acids and bases (alkalis)

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

Determine how to Balance pH

TCAP Review Lesson 17 Vocabulary Foldable (IX)

Acids and Bases.

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

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

2/26/10. pH Clicker Challenge 1.What color is red cabbage juice? 2.Red cabbage juice will turn _____ in an acid. 3.What color will red cabbage juice turn.

 Tell what the pH is for acids, bases, & neutrals.  Describe the basic differences between acids & bases. What do you think the letters “pH” stands for?

Solutions, Acids, and Bases Acids, Bases, and Salts IQRA MODEL SCHOOL, TANDUR.

Acidity and Alkalinity How do we tell an acid from a base and what is it good for?

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. 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.

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

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

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 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.

Hint: Look at your charts on the pink worksheet

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.

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

Bases Bases…what are they?  A compound that increases hydroxide ions in water  Have a bitter flavor, feels slippery, and can conduct electricity  Bases.

ACIDS AND BASES PH.

Acids and Bases Chapter 32.

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.

Acids and Bases Notes. Scientists use a range of numbers, called a pH scale, to tell how acidic or basic a solution is.

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 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 and Bases. Warm up Please do Day 4 questions on your warm up sheet - The homework is due Today -Science fair students I need to give you your order.

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.

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

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.

3/1/10. CHECK YOUR GRADE… IF YOU HAVE ANYTHING HIGHLIGHTED THEN YOU NEED TO TURN IN MISSING OR MAKEUP WORK BEFORE ARTS/PE TODAY (MONDAY)! –Assignment.

ACIDS & BASES An Overview. Acids A compound that produces hydrogen ions (H+) when dissolved in water. Properties include sour taste, reactivity with metals,

Acids and Bases.

Acids And Bases 8.2.

Acids, Bases, and Salts.

8.3 Properties of Acids and Bases

Acids and Bases.

Acids and Bases.

Chapter 7 – Acids, Bases and Solutions

#29 ACIDS, BASES, and pH.

Notes Science SPI Acids and Bases

Section 4 – pg 274 Acids and Bases in Solution

Acids & Bases SciencePower 10 (p ).

Describing Acids and Bases

Acids and Bases.

pH: Another Chemical Property

Notes Science SPI Acids and Bases

Presentation transcript:

 Tell what the pH is for acids, bases, & neutrals.  Describe the basic differences between acids & bases. pH 2, acid or a base? pH 10, acid or a base?

Read What is pH? Answer the 10 question on your own paper using complete sentences. (Also tell which paragraph your answer came from.)

1. What causes a substance to be acidic? 2. What causes a substance to be basic? 3. Why is water neutral? 4. If you have acid indigestion why does antacid help you feel better? 5. What is an indicator? A substance is considered to be an acid when it has many hydrogen atoms. (pH is between 1 and 6.9) A substance is considered to be basic when it contain a combination of hydrogen and oxygen atoms called hydroxyl groups. (pH is between 7.1 and 14) Water is neutral because it has an equal number of hydrogen (H) and hydroxyl (OH) groups. ( pH of 7) (Sections 2) (Section 3) Antacids make you feel better because they are a base and they help raise the pH of your acid stomach towards neutral. (Section 4) An indicator is used to test the pH of a substance. (Section 5)

6. Give three examples of indicators: 7. Why should you brush your teeth more than once daily? 8. What is another word for basic substances ? 9. How many times more acidic is a pH 4 compared to pH 7 ? 10. What question(s) do you still have about pH ? Examples of indicators are litmus paper, Bromothymol blue, grape juice, cabbage juice, and some purple flowers. (Sections 5& 6) You should brush your teeth more than once daily because the base toothpaste neutralizes the mouth and kills the bacteria that causes cavities, but soon the effect wears off and the bacteria return. (Section 4) Another word for a basic substance is alkaline. (Section 3) A pH 4 is 1000 times more acidic than pH 7 because the pH scale changes by powers of ten. (Section 5)

The pH Scale BrainPOP | pH Scale

Vocabulary Copy the definitions below into your vocabulary section. (*Purple part goes in 3rd box) pH: potential of hydrogen Acids: A substance that contains many hydrogen ions, a pH lower than 7.0. Bases: A substance that contains many hydroxyl groups, has a pH higher than 7.0 Hydroxyl Groups: An oxygen atom combined with a hydrogen atom pH Indicators: Indicates the pH of a substance by turning a different color for each pH. Examples: litmus paper, cabbage juice, electronic test meters.

Acids & Bases

Discovery Education Natural Acids & Bases The pH in the Chemistry of Nature

BrainPop Activity AcidBaseNeutral Dissolves Metal Slippery Bitter Tastes Sour Releases OH- Releases H+ Lemons Soap NaCl (Salt) H O 2

Interactive pH websites Acids, Alkalis and Neutralisation Choose: Universal Indicator Reactions 1st make predictions, then test substances /1fokv/syrer_og_baser/indledning_pH.s wfhttp:// /1fokv/syrer_og_baser/indledning_pH.s wf

Fill-in-the-Blank Complete the “Acids & Alkalis in Our Daily Lives” worksheet (On back of BrainPop Activity worksheet) as you fill-in- the-blanks at the following link: Acids and Alkalis in Our Daily Lives When you’re finished try these fill-in-the-blanks online: –Use of IndicatorsUse of Indicators –NeutralisationNeutralisation –AcidsAcids –Strong AcidsStrong Acids –Faces of science:: Do You Know Your Bubbles?Faces of science:: Do You Know Your Bubbles? (After filling in bubbles, click NEXT one time)