What Is the Volume of Hydrogen Gas at STP Released

question 11

Multiple Choice

What is the volume of hydrogen gas at STP released from 2.70 g of aluminum metal and hydrochloric acid? __Al(s) + __HCl(aq) → __AlCl3(aq) + __H₂(g)

• A)1.12 L
• B)1.49 L
• C)2.24 L
• D)3.36 L
• E)6.72 L

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Definitions:

Universal Generalization

A logical principle stating that what is true for all instances within a certain category can be applied generally to the entire category.

Quantifier Negation

The process of applying negation to a quantified statement, which involves changing the quantifier ("for all" to "there exists") and negating the predicate.

Existential Generalization

A logical operation that infers a general statement about the existence of something, based on particular instances or evidence.

Existential Instantiation

A logical process in formal argumentation where an existential quantifier (e.g., "there exists") leads to the establishment of an instance of its subject.