What Is the PH of the Resulting Solution If 45

question 39

Multiple Choice

What is the pH of the resulting solution if 45 mL of 0.432 M methylamine,CH₃NH₂,is added to 15 mL of 0.234 M HCl? Assume that the volumes of the solutions are additive. K_a = 2.70 × 10^-11 for CH₃NH₃⁺.

• A) 2.77
• B) 4.09
• C) 9.91
• D) 11.23

Appreciate the role of organizational structure in supporting business operations and strategic objectives.

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Grasp the role of genetics and environment in determining behavior through animal studies.

Comprehend how neurons communicate with each other to facilitate neural activity.

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Definitions:

Invertebrate Hormone

Hormones in invertebrates that regulate growth, metabolism, and development, similar to those in vertebrates but often with different functions and mechanisms.

Steroid

Lipid with four carbon rings, no fatty acid tails.

Exocrine Gland

Gland that secretes milk, sweat, saliva, or some other substance through a duct.

Endocrine Gland

Ductless gland; aggregation of hormone-secreting epithelial cells with associated connective tissue and blood vessels.