What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH?

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Question: What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH?

Options:

Correct Answer: pH = 7

Solution:

Mixing equal volumes of 0.1 M HCl and 0.1 M NaOH results in a neutral solution with pH = 7.

What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH?

What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH?

Step 1: Understand that HCl is an acid and NaOH is a base.
Step 2: Know that when an acid and a base mix, they can neutralize each other.
Step 3: Recognize that 0.1 M HCl means there are 0.1 moles of HCl in one liter of solution.
Step 4: Similarly, 0.1 M NaOH means there are 0.1 moles of NaOH in one liter of solution.
Step 5: When you mix equal volumes of these solutions, the moles of HCl will equal the moles of NaOH.
Step 6: The reaction between HCl and NaOH produces water (H2O) and sodium chloride (NaCl).
Step 7: Since they neutralize each other completely, the resulting solution will not be acidic or basic.
Step 8: The pH of a neutral solution is 7.

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