Problem: An unknown salt is either NaF, NaCl, or NaOCl. When 0.050 mol of the salt is dissolved in water to form 0.500 L of solution, the pH of the solution is 8.08.What is the identity of the salt?

🤓 Based on our data, we think this question is relevant for Professor Bliem's class at UNC.

FREE Expert Solution

We are asked for the identity of the salt that will give a solution of pH 8.08.


Ionic salts are made up of positively charged ion (cation) and a negatively charged ion (anion). To determine if the ionic salt would be acidic, basic, or neutral, we need to identify the acidity or basicity of the cation and anion.


For cations:

transition metal

▪ charge of +2 or higheracidic
▪ less than +2 → neutral solution

main group metal

▪ charge of +3 or higher acidic
▪ less than +3 → neutral solution

amines - compounds with only nitrogen or hydrogen (i,e. NH3) or with carbon, nitrogen and hydrogen

positive amines acidic


For anions:

• To determine if an anion is basic or neutral you must add an H+ to it.

▪ If adding an H+creates a weak acid → negative ion is basic

▪ if adding an H+creates a strong acid → negative ion is neutral

View Complete Written Solution
Problem Details

An unknown salt is either NaF, NaCl, or NaOCl. When 0.050 mol of the salt is dissolved in water to form 0.500 L of solution, the pH of the solution is 8.08.

What is the identity of the salt?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ionic Salts concept. You can view video lessons to learn Ionic Salts. Or if you need more Ionic Salts practice, you can also practice Ionic Salts practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Bliem's class at UNC.