pH, pOH, [H+], [OH-] Calculations
What is the pH if the pOH = 10.1?
3.9
What does the acid do according to Bronsted Lowry?
What does the base do?
Acid donates the H+ while the base receives it.
What does the L in MEL stand for?
Volume
What is the conjugate base for H2O?
OH-
What are the products of titration reactions?
Salt + water
What is the [OH-] if [H+] = 2.9 * 10-2
3.4*10-13
Define what a conjugate acid is.
The acid formed when the B-L base receives the H+ from the acid.
What would E equal if the acid being titrated was H2SO4?
2
What is the conjugate acid for NH3?
NH4+
HI + Ca(OH)2 ->
Do not need balanced equation.
H20 + CaI2
What is the [H+] if the pH= 8.3?
5.0*10-9
Identify the base:
HCl + OH- -> Cl- + H2O
OH-
Can you use mL in titrations for the volume?
Yes, as long as both volumes have matching units.
Cl-
HNO3 + Al(OH)3 ->
Do not need balanced equation.
H2O + Al(NO3)3
What is the pH if [H+] = 7.5 x 10-3 M?
2.1
Identify the acid:
H2O + NH3 -> NH4+ + OH-
H2O
What is the molarity (concentration) of 25.0 mL of HCl titrated with 50 mL of 0.25 M NaOH? Use sigfigs and units.
0.500 M
What is the conjugate acid for water?
H3O+
Predict the products and balance the equation:
H2SO4 + NaOH ->
H2SO4 + 2 NaOH -> 2 H2O + Na2SO4
What is the pH if [pOH-] = 6.7*10-9
5.8
Identify the conjugate base:
HCO3- + HC2H3O2 -> H2CO3 + C2H3O2-
C2H3O2-
What is the molarity of 100.0 mL of H3PO4 that was titrated with 57.0 mL of 0.850 Ca(OH)2? Use sigfigs and units.
0.323 M
Identify the acid, base, and their conjugates in the following reaction:
HCO3- + HC2H3O2 -> H2CO3 + C2H3O2-
Acid = HC2H3O2
Base = HCO3-
CA = H2CO3
CB = C2H3O2-
Predict the products and balance the equation:
H3PO4 + Ca(OH)2 ->
2 H3PO4 + 3 Ca(OH)2 -> 6 H2O + Ca3(PO4)2