chem 5/29 Flashcards
pH<7
acid
Turns litmus paper red
Acid
Some react with metals to form H2
acid
tastes sour
acid
react with acids to produce salts and water
Acid
Some conduct electrical current
acid
pH > 7
Base
Turns litmus blue
Base
Feels slippery (soap)
base
tastes bitter
base
reacts with acids to produce salts and water
bases
some conduct electrical current
bases
___________acids or bases do not dissociate much in water
Weak
_________________acids and bases dissociate significantly (if not completely).
Strong
_________acids and bases have little solute dissolved in the solution
dilute
___________acids and bases have a lot of solute dissolved in the solution
concentrated
explain the process of acid/base neutralization
the acid and base compounds will dissociate, rearrange, and recombine
Explain what defines a substance as an Arrhenius acid and as an Arrhenius base
An Arrhenius acid will dissociate to put H+ ions (hydrogen ions or protons) into the solution, whereas an Arrenhius base will dissociate to put OH- ions (hydroxide ions) into the solution
Explain what defines a substance as a Bronsted-lowry acid and as a Bronsted-lowry base
A Bronsted-Lowry acid with donate hydrogen ions or protons in a reaction, whereas a Bronsted-Lowry base will accept hydrogen ions or protons in a reaction.
explain what defines a substance as a Bronsted-Lowry conjugate acid and as a Bronsted-Lowry conjugate base.
A conjugate base is the compound remaining AFTER the Bronsted-Lowry acid has donated hydrogen ions, whereas a conjugate acid is the compound created AFTER the Bronsted-Lowery base has accepted hydrogen ions.
Explain what defines a substance as a Lewis acid and as a Lewis base.
A Lewis acid will accept electrons in a reaction, whereas a Lewis base will donate (share) electrons in a reaction
What does pH measure
the concentrations of hydrogen ions in a solution
what does pOH measure
measures the concentration of OH- in a solution
equations for pH and pOH
pH= -log [H+] where [H+] his the molar concentration (molarity) of the hydrogen ions
pOH= -log[OH-] where [OH-] is the molar concentration (molarity) of the hydrogen ions
finding molarity :
M= mol/L
how are pH and pOH related?
pH + pOH = 14