A Solution Is Prepared by Adding 4

question 2

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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A mental state in which a person appears bewildered and may make inappropriate statements and answers to questions.

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A serious disturbance in mental abilities that results in confused thinking and reduced awareness of the environment.

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Impairments in sight that can range from mild vision loss to complete blindness.