Equal Volumes of 0

question 93

Multiple Choice

Equal volumes of 0.020 M Ag⁺ solution and 2.0 M NH₃ solution are mixed. Kf for [Ag(NH₃) ₂]+ is 1.6 × 107. If trisodium arsenate is added so that the arsenate ion concentration is 0.10 M, will silver arsenate precipitate? What is Q? Ksp for silver arsenate is 1.0 × 10^-22.

• A) no, Q = 6.3 × 10^-9
• B) no, Q = 1.9 × 10^-29
• C) yes, Q = 6.5 × 10^-9
• D) yes, Q = 4.2 × 10^-20
• E) no, Q = 2.6 × 10^-29

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Definitions:

Poisson Distribution

A probability distribution used to model the number of times an event occurs in a fixed interval of time or space, assuming events occur with a known constant mean rate and independently of the time since the last event.

Post Office

A public facility or institution responsible for handling mail services, including the collection, sorting, and delivery of letters and packages.

Probability

The likelihood or chance of an event occurring.

Poisson Distribution

A probability distribution that models the number of events occurring in a fixed interval of time or space, given the events occur with a known constant rate and independently of the time since the last event.