Calculate the PH of a Solution Formed by Mixing 150

question 103

Multiple Choice

Calculate the pH of a solution formed by mixing 150.0 mL of 0.10 mol L^-1 C₆H₅COOH with 100.0 mL of 0.30 mol L^-1 C₆H₅COONa. The K_a for C₆H₅COOH is 6.5 × 10^-5.

• A) 4.19
• B) 9.69
• C) 4.49
• D) 4.31
• E) 10.51

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Definitions:

Mescaline

A psychedelic substance derived from certain cacti, known for its hallucinogenic effects.

Narcotics

Drugs derived from opium that are capable of relieving pain.

Opium

A narcotic drug obtained from the poppy plant, used historically for pain relief and recreationally for its euphoric effects, leading to potential addiction.

Relieving Pain

Concerns the methods and techniques used to reduce or alleviate pain, whether through medical, psychological, or alternative therapies.