A Solution Is Prepared by Adding 4

question 69

Multiple Choice

A solution is prepared by adding 4.50 mol of sodium hydroxide to 1.00 L of 1.00 M Co(NO₃) ₂. What is the equilibrium concentration of cobalt ions? K_f = 5.0 *10⁹ for Co(OH) ₄²¯

• A) 1.1 * 10¯² M
• B) 1.4 * 10¯⁵ M
• C) 3.2 *10¯⁹ M
• D) 2.0* 10¯¹⁰ M
• E) 4.9* 10¯¹³ M

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Definitions:

Markup

The difference between the cost of a product or service and its selling price, expressed as a percentage over the cost.

Absorption Costing

A calculation technique in which the cost of a product is determined by including all costs associated with manufacturing, including direct materials, direct labor, as well as variable and fixed overhead costs.

Cost-plus Pricing

A pricing strategy where a fixed percentage is added to the total cost of producing a product to determine its selling price.

Return on Investment

A measure of performance that evaluates the efficiency or profitability of an investment relative to its cost.