In: Chemistry
For each set of aqueous reactants below:
i. Predict the products of a single H+ transfer. Balance the
reacBon if needed.
ii. IdenBfy the acid (A), base (B), conjugate acid (CA) , and
conjugate base (CB) by wriBng
below each substance.
iii. Predict whether the reaction favors the reactants or the
products.
a) KOH + HBrO ? ________ + ________
b) HNO3 + NH3 ? ________ + ________
Calculate the pH of the following aqueous solutions.
2. (4 pts) 0.0350 M HClO4
3. (4 pts) 0.253 M KOH
4. (6 pts) 1.39 M HCN (Ka = 4.9 x 10-10)
By definition, the chemical species which has the difference from one another of only one H+ ion (proton) are called as a 'conjugate acid-base pair.'
a) In the first question, KOH is the base and HBrO is the acid. In the reaction, KBrO and H2O are produced. The acid (A), base (B), conjugate acid (CA) and conjugate base (CB) are shown in the handwritten notes.
b) in the 2nd question, ammonia is the base (B) and Nitric acid is the acid (A). The conjugate acid and base are mentioned in the handwritten notes.