Chromate Ion Is Added to a Saturated Solution of Ag₂CrO₄

question 58

Multiple Choice

Chromate ion is added to a saturated solution of Ag₂CrO₄ to reach 0.10 M CrO₄^2-. Calculate the final concentration of silver ion at equilibrium (K_sp for Ag₂CrO₄ is 9.0 × 10^-12) .

• A) 9.5 × 10^-6 M
• B) 1.7 × 10^-6 M
• C) 5.5 × 10^-11 M
• D) 6.6 × 10^-6 M
• E) 1.1 × 10^-13 M

---

Definitions:

Standard Deviations

A metric indicating the degree of spread or variability in a collection of numbers, highlighting the distance of individual values from the central mean.

Chebyshev's Theorem

A statistical theorem which states that for any real number greater than one, a certain proportion of values in any data set will be close to the mean, based on the number of standard deviations specified.

Standard Deviations

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values are from their mean.

Midrange

The arithmetic average of the maximum and minimum values in a data set.