The pH of a 1.0 x 10-⁴M HCl solution
What is 4?
This term is used to describe the following two molecules according to the Arrhenius model of acids and bases: HCl/Cl-
What is an acid/base conjugate pair?
If hydrochloric acid and sodium hydroxide react, these two products are formed. HCl + NaOH→ ______+_____
What is NaCl + H₂O
A 3.50 x 10-3 M sample of the unknown acid, HA, has a pH of 2.90. Calculate the value of Ka
7.1*10^-4
pH ranges from _____ to ______
0-6.9
pH ranges from ____ to _____
7.1 to 14
What is the Arrhenius model
The reaction between an acid and a base results in the formation of water and this.
What is a salt?
Calculate the pH of 0.50 M H2S (Ka=9.1x10^-8)
3.67
A substance that doesn’t ionize completely, but produces OH- anions
What is a WEAK BASE
Term that describes an acid that can donate more than one hydrogen ion
The value of the ion-produced constant of water (Kw)
1*10^-14
The initial concentration of a solution of NH3 (at pH=11.33) (Kb=1.8x10^-5)
What is 0.26 M
Name one characteristics of acids
taste sour/tart, produces H+ ions in solution...
Name two characteristics of bases
tastes bitter, feels slippery, produces OH- ions in solution...
Model that describes acids as hydrogen ion donors and bases as hydrogen ion acceptors
What is the Bronsted-Lowry model?
How does the enthalpy of a strong base change when it dissociates?
increases
Calculate the pOH of 0.35 M H2CO3. (Ka=4.3x10^-7)
10.59
Write the general expression for the Ka of a weak acid using the general acid equation
ka=(H30)(A-)/(A)
Write the general expression for the Kb of a weak base using the general acid equation
Model that describes acids as electron pair acceptors and bases as electron pair donors
What is the Lewis model?
A solution of 0.100 M HOCN has a pH of 2.24. Calculate the Ka value for this acid.
3.5*10^-4