The PH of an Unknown Solution Is 8

question 16

Multiple Choice

The pH of an unknown solution is 8.5.Its [OH^-] is:

• A) 3.2 × 10^-6 M.
• B) 3.2 × 10^-9 M.
• C) 3.2 × 10⁵ M.
• D) 3.2 M.

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Definitions:

Double Helix

The structure of DNA, which consists of two antiparallel polynucleotide chains twisted around each other.

Polymer

is a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units.

Nucleotides

The basic building blocks of nucleic acids like DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Purines

A type of nitrogenous base found in DNA and RNA, including adenine and guanine, which pair with pyrimidines.