Which term describes a substance that decreases the hydrogen ion concentration of a solution (pH > 7)?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Enhance your biotechnology skills with the NOCTI Biotechnology Test. Practice multiple-choice questions with hints and explanations. Prepare for your exam with confidence!

Multiple Choice

Which term describes a substance that decreases the hydrogen ion concentration of a solution (pH > 7)?

Explanation:
A base. The statement describes a substance that lowers hydrogen ion concentration, which raises the pH above 7. In water, bases often do this by accepting H+ or by releasing hydroxide ions that combine with H+ to form water, reducing the amount of free hydrogen ions. Acids do the opposite, increasing H+ and lowering pH. A buffer stabilizes pH against added acids or bases rather than defining a basic solution, and a solvent is just the medium. So the described substance is a base.

A base. The statement describes a substance that lowers hydrogen ion concentration, which raises the pH above 7. In water, bases often do this by accepting H+ or by releasing hydroxide ions that combine with H+ to form water, reducing the amount of free hydrogen ions. Acids do the opposite, increasing H+ and lowering pH. A buffer stabilizes pH against added acids or bases rather than defining a basic solution, and a solvent is just the medium. So the described substance is a base.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy