🤓 Based on our data, we think this question is relevant for Professor Rabson's class at AMARILLO.
We're asked to determine the pH of a solution that is 1.07% HCl by mass.
Recall that the pH of a solution is given by:
Take note that: [H+] = [H3O+]
Since HCl is a strong acid, it will completely dissociate into ions in solution as follows:
HCl(aq) → H+(aq) + Cl–(aq)
This means that: [HCl] = [H+]
**Brackets,  indicate concentration in molarity
We first need to determine the molarity of HCl.
Recall that molarity (M) is given by:
Since we’re given the mass percent (% by mass) and the density of HCl solution, we can find the number of moles of HCl and the volume of the solution.
Recall that mass percent is given by:
Determine the pH of each solution.
a solution that is 1.07% HCl by mass (Assume a density of 1.01 g / mL for the solution.)