What is the pH of 0.02 mol of NH3 in 0.5 L of solution?
1.4
1
0.3
1.7
If [H3O+] < [OH-]
pH > 7
pH = 7
pH < 7
Which of the following represents an acidic solution
pH = 7
pOH = 3
pOH = 9
pH = 10
What is the conjugate base of HCl?
Cl-
OH-
H2O
HCl2
Find the conjugate base in H2SO4.
SO32-
H2O2
HSO4-
HSO3-
Which of the following has a weak conjugate base?
HF
H2O
HCOOH
HCl
What is the correct description for this solution of HBr?
weak acid
weak base
strong acid
strong base
What is the concentration of hydroxide ions, OH⁻, in a solution at 25.0°C with pH = 3.65?
3.65 M
4.47 × 10⁻¹¹ M
2.24 × 10⁻⁴ M
1.47 × 10⁻¹⁴ M
7.08 × 10¹⁰ M
Calculate the initial concentration of 2.10 mL of a strong base Ba(OH)₂ solution that required 42.0 mL of 0.0250 M hydrochloric acid to reach the equivalence point.