All of the Following Solutions Are Buffers EXCEPT

question 14

Multiple Choice

All of the following solutions are buffers EXCEPT

• A) 100 mL of 0.500 M H₂PO₄− added to 100 mL of 0.200 M HPO₄²⁻.
• B) 100 mL of 0.200 M HF added to 200 mL of 0.200 M NaF.
• C) 200 mL of 0.200 M HCl added to 200 mL of 0.400 M CH₃CO₂−.
• D) 200 mL of 0.500 M NaOH added to 200 mL of 1.000 M HF.
• E) 200 mL of 0.400 M HCl added to 100 mL of 0.200 M CH₃CO₂−.

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Definitions:

Anorexia

This disorder involves having an unusually low body mass, an extreme anxiety about putting on weight, and a twisted vision of one's body weight or configuration.

Lanugo

Fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn.

Distorted Thinking

A cognitive process where reality is misrepresented and thoughts are not aligned with logic or evidence.

Anorexia Nervosa

An eating disorder marked by an intense fear of gaining weight, leading to severely restricted food intake and often starvation.