A new potential heart medicine, code-named X-281, is being tested by a pharmaceu

Question

A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid, but because of security concerns, the actual chemical formula must remain top secret. The company is interested in thedrug's pKa of X-281? M test solution of X-281. The pH of the solution is determined to be 3.00. What is the pKa of X-281, you prepare a 0.095 K_a value because only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries. To find the

Explanation / Answer

Given a 0.095 M solution

pH = 3.00

pH is due to the dissociated molecules only.

pH = -log [H+]

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