Determine the Boiling Point of a Solution That Contains 78

question 53

Multiple Choice

Determine the boiling point of a solution that contains 78.8 g of naphthalene (C₁₀H₈, molar mass = 128.16 g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL) .Pure benzene has a boiling point of 80.1°C and a boiling point elevation constant of 2.53°C/m.

• A) 2.2°C
• B) 2.5°C
• C) 82.3°C
• D) 80.4°C
• E) 82.6°C

Differentiate between various experimental study designs and their purposes.

Explain the importance and challenges of ensuring internal and external validity in research studies.

Understand the role and limitations of human and animal research in psychological studies.

Recognize the importance of genetic and environmental factors in psychological research.

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Definitions:

Classical Conditioning

The approach of training through the habitual pairing of two stimuli; originally, the second stimulus induces the response, which later is induced by the first stimulus solely.

Extinction

In psychology, the diminishing of a conditioned response, typically when the reinforcement or stimulus that originally led to the response is removed.

Original Learning

The initial phase of acquiring new knowledge or skills where fundamental concepts and principles are established.

Classical Conditioning

Learning occurs through consistently pairing two stimuli together; a reaction first stimulated by the second stimulus eventually is stimulated by only the first stimulus.