Introduction to Acids and Bases
This expresses negative power of 10 for the concentration of H+
What is pH
The formula for this is =-log[H+]
What is pH
This representation of covalent bonding in a molecule that is drawn using Lewis symbols. Shared electron pairs are shown as lines, and unshared electron pairs are shown as pairs of dots. Only the valence-shell electrons are shown.
What is a Lewis structure
A measure of the degree to which the electrons are shared unequally between two atoms in a chemical bond
What is bond polarity
The volume at which equimolar amounts of titrant and analyte have been added is called this
What is the equivalence point
This theory states that acids produce H+ in aqueous solutions and bases produce OH- in aqueous solutions
What is the arrhenius theory
The formula for this is =10-pH
What is the concentration of H+
A covalent bond involving one electron pair.
What is a single bond
A covalent bond in which the electrons are shared equally
What is a nonpolar Covalent Bond
For weak acids, the pH at half the volume of the equivalence point is equal to this
What is the pKa for the acid
a substance that can act as both an acid and a base is named this
What is amphoteric
The formula for this is =10-pOH
What is the concentration of OH-
A covalent bond involving two electron pairs.
What is a double bond
A covalent bond in which the electrons are not shared equally
What is a polar Covalent Bond
At volumes less than the half-equivalence point, this is the dominant species
What is undissociated acid
A measurement of the extent of ionization of an acid
What is percent ionization
The formula for this is =-log[OH-]
What is pOH
A covalent bond involving three electron pairs.
What is a triple bond
A measure of the ability of an atom that is bonded to another atom to attract electrons to itself
What is electronegativity
At the half-equivalence point the moles of acid is the same as this
what is moles of conjugate base
These acids can donate more than one H+ in a solution
What is a polyprotic acid
The formula for this is 10-14
What is the concentration of H+ * OH-
The distance between the centers of two bonded atoms
What is bond length
A molecule that possesses a nonzero dipole moment
What is a polar molecule
For a weak acid, the region around the half-equivalence point is called the buffer zone because of this
The weak acid AND the conjugate base are both present in solution