Calculate the Molality of a 25

question 109

Multiple Choice

Calculate the molality of a 25.4% (by mass) aqueous solution of phosphoric acid (H₃PO₄) .

• A)2.59 m
• B)3.47 m
• C)4.45 m
• D)25.4 m
• E)The density of the solution is needed to solve the problem.

---

Definitions:

Reinforcement

In behavioral psychology, a process by which a behavior is strengthened or increased through the addition of a stimulus following the behavior.

Differential Reinforcement

A behavioral technique that involves reinforcing specific behaviors while extinguishing others by withdrawal of reinforcement.

Free Time

Unstructured time periods where individuals can engage in activities of their choosing without obligations or constraints.

Stimulus Control

A situation in which a behavior is executed more frequently in the presence of a specific stimulus because the behavior has been reinforced in the presence of that stimulus.