Examples
P2O5 Oxidation Numbers
To determine the oxidation number of an atom(s) in a molecule or an ion, start with the known oxidation numbers and the rules summarized below: Keep in mind that the summary is zero for neutral molecules and is … Read more
Cr2O72- Oxidation Numbers
To determine the oxidation number of an atom(s) in a molecule or an ion, start with the known oxidation numbers and the rules summarized below: Keep in mind that the summary is zero for neutral molecules and is … Read more
Calculating the pH of Pyridine
What is the pH of a 0.650 M solution of pyridine? Kb = 1.5 × 10-9 Pyridine is a weak base and the first step is to write the reaction of the weak base with water. The formula of pyridine … Read more
pH of NH4ClO3
Calculate the pH of the 0.26 M solution of NH4ClO3 (Kb NH3 = 1.8 x 10-5). Ammonium chlorate (NH4ClO3) is the salt of a weak base ammonia (NH3) and a strong acid HClO3, so it yields an acidic solution. NH3 + HClO3 → NH4ClO3 … Read more
pH of CH3CO2Na
Calculate the pH of a 1.0 M solution of sodium acetate (CH3CO2Na) considering that the Ka of acetic acid (CH3CO2H is 1.7 x 10-5. CH3CO2Na is a salt of a strong base NaOH and a weak acid CH3CO2H therefore, the solution will be basic. … Read more