Chapter 16: pH and Titrations Flashcards
What do acids donate
Protons
What do acids begin with
H
What do bases end with
OH
What do bases accept
Protons
What’s another name for a basic soln
Alkaline soln
What is a proton
A hydrogen ion
What is the symbol for a hydrogen ion
H+
What is the symbol for H+ that has attached itself to water
H3O+
What’s the name for H3O+
Hydronium Ion
What’s the result of an Acid base soln
Salt water
What are salts made of? ( of te parts of acids and bases)
Made of negative ion of an acid and the positive ion of a base
What are the names associated with the negative ion of the acid and the positive ion of the base
Anion
Cation
What is the process of H2O undergoing ionization called
Auto protolysis
At what T does Auto proteolysis occur
25C
Describe the pH range of Acid and base solns
When H3O is equal to OH neutral
H3O > acid soln
OH > basic soln
What’s Kw
The ionization constant for H2O
What’s the value of KW
Kw=[H3O+][OH-]
kW= 1x10^-14
What does pH evaluate?
The relationship btw acids and bases
What is the equation to calc pH
pH=-log[h3O+]
Who is pHs friend and what is he based on
pOH
Based on the [OH-]
What’s is pOH calc
pOH=-log[OH-]
What are the four calculations
kW=[H3O+][OH-]
pH+pOH=14
pH=-log[h3o+]
pOH=-log[OH-]
What is titration used for?
A way to find pH experimentally
What is the definition of titration
The controlled addition of a soln of known[] that is required to react completely with a measure amount of a soln of unk []
What is a primary standard
A soln whose [] is known with confidence
What is the primary standards purpose
Serves as the soln of known [] in a titration
What indicator did we use
Pth
What is the transition interval
The pH range or value at which an indicator changes color
What’s another name for end pint
Equivalent point
Define end point
The point in titration where the color change occurs and you’re done
What are the four calculations
kW=[H3O+][OH-]
pH+pOH=14
pH=-log[h3o+]
pOH=-log[OH-]
What is titration used for?
A way to find pH experimentally
What is the definition of titration
The controlled addition of a soln of known[] that is required to react completely with a measure amount of a soln of unk []
What is a primary standard
A soln whose [] is known with confidence
What is the primary standards purpose
Serves as the soln of known [] in a titration
What indicator did we use
Pth
What is the transition interval
The pH range or value at which an indicator changes color
What’s another name for end pint
Equivalent point
Define end point
The point in titration where the color change occurs and you’re done
