A Solution Is Prepared by Dissolving 16

question 91

Multiple Choice

A solution is prepared by dissolving 16.2 g of benzene (C₆H₆) in 282 g of carbon tetrachloride (CCl₄) .The concentration of benzene in this solution is ________ molal.The molar masses of C₆H₆ and CCl₄ are 78.1 g/mol and 154 g/mol,respectively.

• A) 7.36 × 10^-4
• B) 0.736
• C) 0.102
• D) 0.0543
• E) 5.43

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Definitions:

Conditioning Stimuli

External or internal cues that, through learning, lead to conditioned responses in behavioral psychology.

Process Information

The act of taking in, interpreting, and making sense of information, which can involve perception, understanding, and retention of data.

Sleep

A natural, recurring state of rest for the mind and body, characterized by altered consciousness, reduced muscle activity, and inhibition of nearly all voluntary muscles during rapid eye movement (REM) stages.

Operant Conditioning

A method of learning that uses rewards and punishments to modify behavior.