pH/pOH
Calculate the pH of a solution with a [H+]= 0.0123 M
pH=1.910
True or False: water is the conjugate base of H3O+
true
True or false: The stronger an acid, the smaller it's Ka value
False
how many moles of KOH will it take to neutralize 0.50 moles of HCl?
0.50 mol KOH
what is the name of H2CO3?
Carbonic acid
If the pH of a solution is 8.45, calculate the hydrogen ion concentration
[H+]=3.5 X 10-9 M
What would be the conjugate base of HNO3?
NO3-
What is the generic formula for Ka?
Ka= ([A-][H+])/[HA]
How many moles of H2SO4 will it take to neutralize 4.5 moles of NaOH?
2.3 mol H2SO4
What is the name of HClO4
perchloric acid
If the concentration of hydroxide in a solution is 0.072 M, what is the pOH?
pOH=1.39
What is the conjugate base of water?
OH-
Calculate the Ka of a 0.150 Molar solution of methanoic acid (HCOOH) if [H+]=5.2 X 10-3 Molar.
Ka=1.9 X 10-4 M
how many moles of Mg(OH)2 will it take to neutralize 0.245 moles of H3PO4?
0.368 mol Mg(OH)2
What is the formula for sulfurous acid?
H2SO3
If the pOH of a solution is 2.08, what is the hydrogen ion concentration?
[H+]=1.2 X 10-12 M
H2CO3 + H2O --> HCO3- + H3O+
Based on this equation, which species is the conjugate base?
HCO3-
Calculate the Ka of a 0.53 Molar solution of acetic acid (CH3COOH) if [H+]= 7.23 X 10-2 Molar.
Ka=0.011 M
how many mL of 1.5 Molar NaOH would it take to neutralize 43.4 mL of 0.50 Molar HCl?
14 mL NaOH
What is the formula for hydrocyanic acid?
HCN
What is the pH of a solution with a hydroxide concentration of 0.900 M?
pH=13.954
NH3 + H2O --> NH4+ + OH-
Based on the equation, which species is the conjugate acid?
NH4+
The Ka of a monoprotic weak acid is 6.07 X 10-12 M. Would this be a strong or a weak acid based on this Ka value? Why?
Weak; very small number-not a lot of dissociation occurring
What is the molarity of KOH if 30.1 mL are needed to neutralize 15.5 mL of 1.5 Molar H2SO4?
1.5 M KOH
What is the formula for phosphoric acid?
H3PO4