Respuesta :
Answer;
pH = 3.03
Explanation;
NaCl is a neutral salt and does not affect the pH.
moles HCl = g HCl / MM
= 16.5 / 36.5
= 0.452 equivalent to moles H+
Molarity H+ = moles H+ / L
= 0.452 / 482
= 0.000938 M
Hence; pH = -log[H+]
= -log(0.000938)
= 3.03
3.03 is the resulting pH obtained by mixing 16.5 g HCl and 22.6 g NaCl in water.
What is pH?
pH of any solution tells about the acidity or basicity of that solution.
Given reactants are NaCl and HCl, where NaCl is neutral in nature so it doesn't affect the pH. Only HCl affect the pH of the solution.
First we will determine the moles of HCl, to further calculate the concentration in terms of molarity.
No. of moles of HCl i.e. n = W/M
W = given mass = 16.5g
M = molar mass = 36.45g/mol
So, n = 16.5g / 36.45 g per mol = 0.452 mol
So, moles of HCL is equal to the moles of H⁺ ions in the solution.
Now we calculate the concentration of H⁺ ions in terms of molarity, in the following way:
M = n/V = 0.452mol / 482 L (given) = 0.0009 M
We know that, pH = -log[H⁺]
pH = -log[0.009] = 3.03
Hence, resulting pH is 3.03.
To learn more about pH, visit the below link:
https://brainly.com/question/13557815
