PH. A- What is pH? A1.pH represents the concentration of H + in a solution A2.pH = the power of Hydrogen pH = -log 10 [H + ] A3.Lower pH means higher.

Slides:



Advertisements
Similar presentations
Your performance improvement partner 2/25/
Advertisements

7B Unit 3 Finding your way Integrated skills. Millie is walking across the road.Millie is walking along the road.Sandy is walking over the bridge.Kitty.
Advanced Concepts in Scheduling SCH02 Stephen Rando.
Safety in the Lab What is different about this classroom and every other classroom in your school?
PLAN DU COLLEGE JEAN MONNET RDC1 er étage. Prendre la feuille de papier millimétré dans le sens de la largeur :
PLAN DU COLLEGE JEAN MONNET RDC1 er étage. Prendre la feuille de papier millimétré dans le sens de la largeur :
A A1 B B1 C C1 D D1 E E1 F F1 G G1 H H1 I I1 J J1 K K1 L L1 M M1 N N1 O O1 P P1 Q Q1 R R1 S S1 T T1 TP53ALU.
Acids & Bases By Robert McGee. Our Goals for today To determine the difference between Acids & Bases Discuss the importance of studying Acids & Bases.
Acidity, Basicity, and pH
Chapter Nineteen: Solutions
PH.
PH.
PH.
Jedi, Claire, Warren, Erin, Jesse. Why is pH important to monitor in water systems? Ph is a scale that measures the acidity or alkalinity of a substance.
Ch 11 Acids & Bases Test Review. 1.Color Change; Universal indicator- yellow, orange and red Blue Litmus paper  turns red 2.) Sour taste and conducts.
Indicators and pH Objective:
Acids and Bases. How acidic a substance is, or how basic a substance is, is measured on a scale known as the pH scale. This is a logarithmic scale that.
Hydrogen Ions and Acidity The Ionization of Water and pH.
Hydrogen Ions and Acidity The Ionization of Water and pH.
Aim: How to determine if a solution is acidic, basic, or neutral.
Strength of Acids and Bases. What makes a strong acid or base?  The strength of an acid or base is based on how many acid or base particles break down.
Bellringer What is an acid? What is a base?
PH and Titration Notes Chemistry. pH  measure of the strength of acids and bases  pH = power of hydrogen  pH = -log [H + ]  logarithmic scale – so.
Acids and Bases. Properties of Acids: Properties of ACIDS: 1. tastes sour.
SECTION 6.3 PG Acid – Base Indicators. Substances that change colour when the acidity of the solution changes are known as _________________.
What is pH? What is it like to eat a lemon? Scientists realized that the sour taste of a lemon is related to certain type of chemical when it is present.
The pH Scale & pH Calculations Chemistry 10 Mrs. Page.
The pH Scale and Indicators. The pH Scale pH- “potency hydrogen” [H + ], a measure of how acidic or basic a solution is, the concentration of H + ions.
PH SCALE Chemistry. Dissociation  Water will split apart to give a H +1 ion and an OH -1 ion. H 2 O (l)  H +1 (aq) + OH -1 (aq) The equilibrium constant.
Acids and Bases.
PH.
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.
Acids, Bases, & ph Lab Page 101. Red cabbage waterRed cabbage water is an indicator of pH. Although it can't be used to determine exact pH, it can distinguish.
Acids and Bases. Acids  Acid- a compound that produces hydrogen ions in a solution. -Ex.- H combines with H2O to make H3O which is an acid. -The more.
Acidity and Alkalinity How do we tell an acid from a base and what is it good for?
The Autoionization of Water In water, we constantly have (a little)... H 2 O(l) + H 2 O(l) H 3 O + (aq) + OH – (aq) Thus 25 o C), the eq. const. for.
CHEMISTRY Unit 10 Notes: Acid & Base Stuff. (1) Acids Release H+ (hydrogen ions) when they dissociate in water. Common Characteristics: – pH = 0-6 – Indicator.
Do now! Can you look carefully through the test?.
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.
ACIDS & ALKALIS.
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.
Delia, Lawrence, Jake, Will, Ashley, Rachel pH Monitoring.
Split Notes for Chemical Properties Key Terms 1.What is a chemical property? 2. What is reactivity? Explanations, Definitions, and Concepts 1.A chemical.
AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds.
pH Scale and Indicators
Chapter 6 Acids and Bases.
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 Notes. Scientists use a range of numbers, called a pH scale, to tell how acidic or basic a solution is.
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 and Bases. TITLE The effect of an indicator on determining the pH level of various substances.
A CIDS & B ASES Science 10: Chemical Reactions. PROPERTIES OF ACIDS A chemical compound that produces hydrogen ions (H + ) when dissolved in water ex.HCl.
Acids, Bases & pH. Acids Has positive hydrogen ions (H+) Has positive hydrogen ions (H+) Sour Taste Sour Taste Reacts with Metals and Carbonates Reacts.
Measured on a pH scale (0-14). Is a compound that dissolves in water to form a solution with a pH lower than 7 Examples: Vinegar Lemon Juice Acid Rain.
SECTION 6.3 PG Acid – Base Indicators. Substances that change colour when the acidity of the solution changes are known as acid-base indicators.
Methods for Reliable and Accurate Measures of pH
Acids and Bases.
Indicators 8A1 – Thursday 26 Nov 2014.
PH scale “power of hydrogen”.
PH Scale.
pH and Acid-Base Indicators
Bellwork ALWAYS WRITE IN COMPLETE SENTENCES
Acids, Bases, & pH Section 2.6.
The pH Scale.
The pH Scale.
PH.
Acids and Bases.
The “p” stands for potential and the “H” stands for Hydrogen.
Methods for Reliable and Accurate Measures of pH
Presentation transcript:

pH

A- What is pH? A1.pH represents the concentration of H + in a solution A2.pH = the power of Hydrogen pH = -log 10 [H + ] A3.Lower pH means higher H + concentration

B- What is pH used for? B1.pH tells how acidic or basic a solution is B2.Very acidic solution has low pH value B3.Very basic solution has high pH value

C1. pH scale lies from 0 (very acidic) to 14 (very basic) C2. Neutral solution has pH =7

D- pH and soil D1.Corn and small grains prefer pH 5-6 (acidic? neutral? Or basic?) D2. it’s slightly acidic -D3.Potatoes and blueberries prefer pH < 5 (acidic? neutral? Or basic?) -D4. it’s basic

E- Hydrangea color E1- Blue flowers if in acidic soil (pH <5.5) E2- Pink flowers if in basic soil (pH> 6.5)

F- pH and Cosmetics F1. Our skin has a pH of 5.5 F2. What can you infer about our skin? F3. Why is it necessary to have pH 5.5? F4.High pH cosmetic products can remove layers of dead cells, making skin look brighter and clearer. Occasional use only

G. How to test pH? pH paper G2.Indicators G1.pH meter Red cabbage juice

H. pH paper H1. Litmus paper: H2. Litmus: an indicator from lichen H3. 2 kinds: blue and red H4. Acids turns blue litmus to red H5. Bases turns red litmus to blue

I. pH paper with universal indicator I1.Paper dipped in mixture of many indicators that produce different color at different pH I2.Acids turn pH paper to red/orange color I3.Bases turn pH paper to blue/green color

J- Natural indicator J1. Natural indicator: such as red cabbage juice

K. Other indicators K1. Color of bromothymol blue =? when pH =13

Lab Read the pH of common household substances using both: -pH paper -natural indicator (i.e. red cabbage juice)

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.