HELP ME PLEAS its chem 1. The thermal waters of a spring have a hydronium ion (H3O+) concentration of 2.00 x 10-6 M. Calculate the pH of the water.

2. Acetic acid (CH3COOH) is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical. Vinegar is dilute acetic acid, often produced by fermentation. The following is a reversible reaction:
CH3COOH ↔ H+ + CH3COO–
• Write the set up you would use to calculate the Ka of this reaction.
• Calculate the hydrogen ion concentration [H+] of a 0.1 M solution of acetic acid given that the dissociation constant of acetic acid is Ka = 1.8 x10–5. Work must be shown to earn credit.

3. Describe the reaction of a strong acid and a weak base. In general, what will the final pH be when the reaction between equal moles of a weak acid and a strong base is complete? Explain your answer.