What Is the Concentration of Pb²⁺ Ions in a Solution

question 122

Multiple Choice

What is the concentration of Pb²⁺ ions in a solution prepared by adding 5.00 g of lead(II) iodide to 500. mL of 0.150 M KI? [K_sp(PbI₂) =1.4 × 10^-8]

• A) 2.2 × 10^{-2 M}
• B) 1.5 × 10^{-7 M}
• C) 6.2 × 10^{-7 M}
• D) 9.3 × 10^{-8 M}
• E) 1.4 × 10^{-8 M}

---

Definitions:

Standard Cost

A predetermined cost of manufacturing a single unit or a number of product units during a specific period under current or anticipated operating conditions.

Overhead Applied

An accounting method used to allocate estimated overhead costs to specific products or job orders based on a predetermined rate or method.

Machine Hours

A measure of the amount of time a machine is operating during a specific period.

Under/Overapplied Overhead

This term identifies the discrepancy between the estimated overhead costs allocated to products or services and the actual overhead costs incurred.