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Environmental Science

Environmental Science

Environmental Science. Lesson 6 - pH. Everyday pH. pH is both in and around us all the time Body organs require certain pH to function Food/drink Some people are sensitive to acids Colas, orange juice, coffee, etc. Can remove calcium from bones in women Cleaning products

By kaya
(48 views)

Concentration, pH, Temperature and Pressure

Concentration, pH, Temperature and Pressure

Concentration, pH, Temperature and Pressure. Concentration. A solution is a homogeneous mixture of one substance (the solute) dissolved in another substance (the solvent). Concentration is a ratio of the amount of solute to the amount of solvent.

By gretel
(77 views)

pH of Salts

pH of Salts

pH of Salts. When acids are neutralized by bases, water and a salt is formed. The salt solution can be acidic, basic, or neutral depending on the acid and base used in the neutralization. Neutral salts (pH=7) are only produced when both acid and base were strong .

By isi
(363 views)

Can’t Judge a Powder By Its Color

Can’t Judge a Powder By Its Color

Can’t Judge a Powder By Its Color. Gretchen S. Wolf Continuing Lecturer Purdue University Calumet Site Coordinator Purdue Regional Science Olympiad Regional Judge, 1999 to present National Judge, 2003 Columbus, Ohio 2001 Colorado Springs, CO.

By gusty
(107 views)

Acids and Bases

Acids and Bases

Acids and Bases. I.  THEORIES OF ACIDS & BASES          A.  Arrhenius theory          B.   Bronsted -Lowry theory                    1.  conjugate pairs                    2.   amphoterism II.   II.  pH SCALE, NEUTRALIZATION & SALTS III .  pH &  pOH IV.  TITRATIONS.

By lora
(129 views)

King

King

pH. King. 7-5.6 Distinguish between acids and bases and use indicators (including litmus paper, pH paper, and phenolphthalein) to determine their relative pH.

By hiroko
(93 views)

Acids and Bases

Acids and Bases

Acids and Bases. The pH Scale. The pH scale measures the ratio of hydrogen-based ions. 2H 2 O  OH - + H 3 O + Water molecules dissociate into hydroxide anions ( OH - ) and hydronium cations ( H 3 O + ). The pH Scale. Neutral solutions have an equal amount of hydroxide and hydronium ions

By jalila
(99 views)

Introduction to Acids and Bases

Introduction to Acids and Bases

Introduction to Acids and Bases. What are they and how do we as scientists measure them?. pH Scale. pH is a measure of how acidic or basic a solution is. The pH scale ranges from 0 to 14. A solution with a pH of 7 is neutral . Pure water has a pH of 7. .

By oliana
(80 views)

Science Fair Project

Science Fair Project

Science Fair Project. Question ??. How does acid rain effect plant growth?. Hypothesis. Acid rain will cause plant growth to be slowed and stunted. Experiment:.

By rafi
(104 views)

Chemistry Chapter 19.3

Chemistry Chapter 19.3

Chemistry Chapter 19.3. Strengths of Acids and Bases. Strong and Weak Acids and Bases. Acids and bases are classified as strong or weak according to the degree to which they ionize in water. Strong acids are completely ionized in aqueous solution.

By rafer
(136 views)

Measuring pH and pOH

Measuring pH and pOH

Measuring pH and pOH. Also Known As… Please don’t ask me, “Why do they start with small letters and end with capital letters?”, because it’s just the chemists doing whatever they want again…. What is “pH”?. The term “pH” refers to the measurement of the strength of an acid or base.

By clodia
(176 views)

Chapter 15a Neutral, Acidic, and Basic Solutions

Chapter 15a Neutral, Acidic, and Basic Solutions

Chapter 15a Neutral, Acidic, and Basic Solutions. Because the hydronium ion and hydroxide ion concentrations are the same in pure water, it is neutral. Any solution in which [ H 3 O+ ] = [ OH− ] is also neutral. Acids increase the concentration of H 3 O+ in aqueous solutions.

By zody
(111 views)

Drill: Determine EC, EDD, & Ox # for each element in CuCl 2

Drill: Determine EC, EDD, & Ox # for each element in CuCl 2

Drill: Determine EC, EDD, & Ox # for each element in CuCl 2. Chemical Periodicity. Atomic Size. Size increases as you go down in any column Size decreases from left to right in any row. Ionic Size. Size increases as total charge decreases C +2 > C +4 F -1 > F.

By cherie
(139 views)

Preparation of catechol-containing polymers and their applications

Preparation of catechol-containing polymers and their applications

Preparation of catechol-containing polymers and their applications. 2012.12.29 王晓莉. A Stiff Injectable Biodegradable Elastomer. Four-armed PEG modified with dopamine is described which changes from liquid to elastic solid by reaction with Fe 3 + solution.

By abba
(324 views)

Electrochemistry

Electrochemistry

Electrochemistry. homework. Page 863 1-13, 17, 31-89 odd. Oxidation- Reduction Reactions. Redox or oxidation-reduction reactions are reactions that involve a transfer of electrons. O xidation i s the l oss of electrons. R eduction i s the g ain of electrons.

By lottie
(205 views)

Types of Chemical Reactions

Types of Chemical Reactions

Types of Chemical Reactions. Synthesis Reactions. Smaller atoms/compounds combine to form larger molecules Also known as combination or addition reactions. A + B  AB. 2H 2 + O 2  2H 2 O. Synthesis Reaction. Synthesis Reactions -Examples.

By william-doyle
(121 views)

Autoionization of Water

Autoionization of Water

Autoionization of Water. H 2 O (l) + H 2 O (l). H 3 O + (aq) + OH - (aq). . . . OR. H + (aq) + OH - (aq). H 2 O (l). K w = [H + (aq) ] [OH - (aq ) ] = 1.0 X 10 -14 at SATP. In neutral solutions [H + (aq) ] = [OH - (aq) ]

By sylvester-giles
(126 views)


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