What Is the Minimum Mass of Na₂CO₃ (Molar Mass =

question 75

Multiple Choice

What is the minimum mass of Na₂CO₃ (molar mass = 105.990 g/mol) that must be added to 43.4 mL of a 1.0 × 10^-4 M AgNO₃ solution in order for precipitation to occur? The K_sp of Ag₂CO₃ is 8.6 × 10^-12.Assume no volume change occurs upon addition of Na₂CO₃.

• A) 4.6 × 10^-4 g
• B) 3.1 × 10^-4 g
• C) 2.3 × 10^-4 g
• D) 4.0 × 10^-7 g
• E) 4.0 × 10^-3 g

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Definitions:

Series Logic

In digital electronics, it refers to a circuit configuration where components are connected in sequence, and the output of one component directly influences the input of the next.

OR Logic

A fundamental logical operation that outputs true when any of its inputs are true, used in digital electronics and computer algorithms.

Scan

The process by which a PLC cyclically reads inputs, executes logic, and updates outputs within a controlled time frame.

Sequential Process

An ordered series of operations or activities where the output of one step serves as the input for the next, often used in manufacturing or programming.