Chapter 10 Flashcards
To find a base with the strongest conjugate acid, find the lowest _____ value.
Kb
lowest Kb = highest Ka value = strongest conjugate acid
How to find pH when given [H+]?
exponent of [H+] is the approximate pH
T/F - If the [H+] concentration of a compound is less than 1 x 10^-7, you cannot use its exponent to approximate pH.
TRUE
A buffer is a mix of a _____ acid and its _____ base.
weak, conjugate
also can be a weak base and its conjugate acid
What is the periodic trend for acid strength?
acids will increase going from left to right and down the same column
Arrhenius acid
Arrhenius base
acid - donates protons
base - donates OH ion
Bronsted acid
Bronsted base
acid - donates protons
base - accepts H+
Lewis acid
Lewis base
acid - accepts electrons
base - donates electrons
An (increase/decrease) in electronegativity will (increase/decrease) acidity in heteroatom.
increase, increase
A weak acid and strong base will have a pH ___ than 7, while a weak base and strong acid will have a pH ____ than 7
greater, less than
What are the neutral cations?
Group 1 metals, group 2 metals, and metal with a +1 charge
What are the neutral anions?
Cl, Br, I, NO3, ClO4, ClO3
How would you increase solubility if a salt forms a basic anion?
How would you increase solubility if a salt forms and acidic cation?
adding acid, removing acid
