Phosphine, PH₃, a Reactive and Poisonous Compound, Reacts with Oxygen

question 131

Multiple Choice

Phosphine, PH₃, a reactive and poisonous compound, reacts with oxygen as follows: 4PH₃(g) + 8O₂(g) → P₄O₁₀(s) + 6H₂O(g) If you need to make 6.5 moles of P₄O₁₀, how many moles of PH₃ is required for the reaction?

• A)6.5 moles
• B)13 moles
• C)26 moles
• D)3.2 moles
• E)1.6 moles

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Definitions:

Lever

A simple machine consisting of a rigid bar that pivots on a fixed point, used to transfer force and change the direction of force.

Variable Interval

Variable interval refers to a reinforcement schedule in which rewards are given after unpredictable time intervals, used in behavioral conditioning.

Reinforcement

In psychology, a process by which a stimulus increases the probability of a response through either positive or negative reinforcement.

Response

A reaction to a specific stimulus or set of stimuli, which can be observable behavior or internal processes.