What Is the PH at the Equivalence Point of a Weak

question 127

Multiple Choice

What is the pH at the equivalence point of a weak base-strong acid titration if 20.00 mL of NaOCl(aq) requires 28.30 mL of 0.50 mol L^-1 HCl(aq) for complete neutralization? K_a = 3.0 × 10^-8 for HOCl.

• A)0.30
• B)3.18
• C)3.76
• D)4.03

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Definitions:

Periodic Inventory System

An inventory accounting system where updates are made on a periodic basis, rather than continuously, often used for calculating cost of goods sold at the end of an accounting period.

Sales Returns & Allowances

Reductions in sales revenue for products returned by customers or allowances given for damaged goods.

Merchandise Inventory

Goods that a company holds for the purpose of selling to customers in the ordinary course of business.

Periodic Inventory Method

An inventory accounting system where updates are made periodically, often leading to adjustments at the end of an accounting period.