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# A 1.50-L acid solution contains 0.35 g total of HCl and

ISBN: 9780321910295 34

## Solution for problem 114P Chapter 14

Introductory Chemistry | 5th Edition

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Problem 114P

A 1.50-L acid solution contains 0.35 g total of HCl and HBr. The pH of the solution is 2.40. What are the masses of HCl and HBr in the solution?

Step-by-Step Solution:

Solution 114P:

Here, we are going to calculate the masses of HCl and HBr in the solution.

Step 1:

pH of the solution is =2.40

pH =-log[H3O+]

[H3O+] = 10-pH  = 10-2.40

= 0.00398

Thus, the concentration of hydronium solution is = 0.00398 M

Step 2:

Amount of hydronium ion in the solution is =  1.50-L x  0.00398 mol/L = 0.00597 mol

Thus, total mass of the solution is =  0.35 g

Molar mass of the solution = = 58.62 g/mol

Step 3 of 3

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