Silver Ions Can Be Precipitated from Aqueous Solutions by the Addition

question 147

Multiple Choice

Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag⁺(aq) + Cl^-(aq) → AgCl(s)
Silver chloride is virtually insoluble in water so that the reaction appears to go to completion.How many grams of solid NaCl must be added to 25.0 mL of 0.125 M AgNO₃ solution to completely precipitate the silver?

• A) 3.13 × 10^-3 g
• B) 5.35 × 10^-5 g
• C) 0.183 g
• D) 0.0535 g
• E) 1.87 × 10⁴ g

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Definitions:

Concrete-Operational Children

A developmental stage in Piaget's theory, typically from ages 7 to 11, when children gain a better understanding of concrete events and logical operations but still struggle with abstract concepts.

Egocentric

The habit of interpreting all events and situations with regard to one's own personal perspective, neglecting the viewpoints or emotions of other people.

Transitivity

In logic and mathematics, a property of relations that states if relation A exists between B and C, and relation A also exists between C and D, then A must exist between B and D as well.

Decentration

A cognitive ability to consider multiple aspects of a situation rather than focusing on just one.