What Is the Hydronium Ion Concentration in an Aqueous Solution

question 79

Multiple Choice

What is the hydronium ion concentration in an aqueous solution prepared by mixing 50.00 mL of 0.10 mol L^-1 HCN with 50.00 mL of 0.010 mol L^-1 NaCN? Assume that the volumes of the solutions are additive and that K_a =

• A)4.9 × 10^-11 mol L^-1
• B)4.9 × 10^-10 mol L^-1
• C)4.9 × 10^-9 mol L^-1
• D)7.0 × 10^-6 mol L^-1

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The outer protective layer of the body that acts as a barrier against environmental elements and pathogens.

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The removal of a portion of the vertebral posterior arch.

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A bone in the spine (also known as a spinal bone) that encloses and protects the spinal cord, while also providing structural support to the body.

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