TRIS {(HOCH₂)₃CNH₂} Is One of the Most Common Buffers Used

question 46

Multiple Choice

TRIS {(HOCH₂) ₃CNH₂} is one of the most common buffers used in biochemistry.A solution is prepared by adding enough TRIS and 12 M HCl(aq) to give 1.00 L of solution with [TRIS] = 0.30 M and [TRISH⁺] = 0.60 M.What is the pH of this buffered system if the pK_b is 5.92?

• A)5.92
• B)6.22
• C)7.78
• D)8.08

Understand the implications of dividends on investments and equity earnings calculations.

Know how to adjust the available-for-sale security portfolio to fair value and its reporting on financial statements.

Calculate the changes in Retained Earnings due to investments and dividends.

Understand and apply the cost method for reporting investments in other companies.

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