🤓 Based on our data, we think this question is relevant for Professor Paesani's class at UCSD.
We’re being asked to calculate the pH of a mixture of acids containing 0.155 M in HNO2 and 9.0×10−2 M in HNO3.
Remember that strong acids would fully dissociate in water, and that weak acids partially dissociate in water and that acids donate H+ to the base (water in this case).
The dissociation of the acids are as follows:
**chemical formula of each weak acid can be found in textbooks/online
To solve for the pH of the mixture, we need to do these steps:
Step 1. Determine the concentration of H3O+ from strong acid.
Step 2. Construct an ICE table for each weak acid to solve for the concentration of H3O+ from the weak acid.
Step 3. Solve for the pH of the mixture.
Recall that pH is given by:
Find the pH of each of the following solutions of mixtures of acids.
0.155 M in HNO2 and 9.0×10−2 M in HNO3