Problem: What is the pH of a 0.0150 M aqueous solution of rubidium hydroxide (RbOH)?A. 1.82B. 6.20C. 10.8D. 12.2E. none of the above

We’re being asked to determine the pH of a 0.0150 M aqueous solution of rubidium hydroxide (RbOH).

Let’s first determine what type of base is RbOH:

• Any Group 1A metal when combined with OH^-, H^-, O^2- or NH₂^- makes a strong base

• Rb (Group 1A metal) is paired with OH^-

• RbOH → strong base

We're going to calculate the pH of the solution using the following steps:

Step 1: Determine the OH^- concentration in the solution.
Step 2: Calculate for pOH.
Step 3: Calculate for pH.