Assume equal concentrations, rank these solutions by pH HBrO, Ca(OH)2, HCl, KOH, NH3

Here's how I ranked it:
highest: Ca(OH)2 > HCl > KOH > NH3 > HBrO lowest

is this correct? if not please tell me why!

strong base:

Ca(OH)2 highest pH
KOH

weak base:
NH3

weak acid:
HBrO

strong acid:
HCl lowest pH

Wow close but what a horrible mistake... Thanks DrBob!

Your ranking is incorrect. The correct ranking of the solutions by pH is:

Highest pH: KOH > Ca(OH)2 > NH3 > HCl > HBrO: Lowest pH

Here's why:

1. KOH (Potassium hydroxide) is a strong base, meaning it dissociates completely in water to form hydroxide ions (OH-) which increases the concentration of hydroxide ions and therefore increases pH.

2. Ca(OH)2 (Calcium hydroxide) is also a strong base and has a higher pH than HCl and HBrO since it also dissociates completely to increase the concentration of hydroxide ions.

3. NH3 (Ammonia) is a weak base, meaning it only partially dissociates in water to form hydroxide ions. However, it still increases the pH, though not as much as the strong bases.

4. HCl (Hydrochloric acid) is a strong acid and fully dissociates in water to form hydrogen ions (H+), which decreases pH.

5. HBrO (Hypobromous acid) is a weak acid and partially dissociates in water to form hydrogen ions. Compared to HCl, it has a higher pH but still lower than the bases mentioned above.

So, the correct ranking for the given solutions by pH, from highest to lowest, is:
KOH > Ca(OH)2 > NH3 > HCl > HBrO

Based on your ranking, I can tell you that it is not entirely correct. Let me explain how to correctly rank these solutions by pH.

To rank the solutions by pH, we need to look at the strength of the acids or bases present. The strength of an acid or base is determined by its ability to release or accept hydrogen ions (H+) in an aqueous solution. The more hydrogen ions present, the lower the pH value.

Let's analyze each solution in the given order:

1. HBrO (hypobromous acid): HBrO is a weak acid, so it will not release many hydrogen ions. Therefore, it will have a relatively higher pH.

2. Ca(OH)2 (calcium hydroxide): Ca(OH)2 is a strong base. When dissolved in water, it will dissociate completely, releasing two hydroxide ions (OH-). The high concentration of hydroxide ions results in a higher pH than that of HBrO.

3. HCl (hydrochloric acid): HCl is a strong acid that completely dissociates into hydrogen ions (H+) and chloride ions (Cl-) in water. It has a much lower pH than both HBrO and Ca(OH)2.

4. KOH (potassium hydroxide): KOH is also a strong base, similar to Ca(OH)2. It will dissociate completely, releasing hydroxide ions (OH-) and resulting in a higher pH compared to HCl.

5. NH3 (ammonia): NH3 is a weak base that can accept hydrogen ions. It will not release many hydroxide ions, resulting in a higher pH.

Now, let's revise the ranking based on the provided information:

Highest: Ca(OH)2 > KOH > HCl > NH3 > HBrO Lowest

Therefore, your ranking is partially correct, except for the order of KOH and HCl. KOH should be higher in pH than HCl due to its higher concentration of hydroxide ions.

Remember, this ranking assumes equal concentrations of each solution.