A Solution Is an Acid If Its PH Is Less $6.3$

question 26

Multiple Choice

A solution is an acid if its pH is less than 7 and a base if its pH is greater than 7. The pH is defined by pH = -log10[H+],
where [H+] is the concentration of hydrogen ions in the solution. Use this information to answer the question
-A mixture has a pH of $6.3$ . Find the concentration of hydrogen ions $\left[ \mathrm { H } ^ { + } \right]$ in the mixture. Is the mixture an acid or a base?

• A) \(10 ^ { 6.3 }\), base
• B) \(10 ^ { 6.3 }\), acid
• C) \(10 ^ { - 6.3 }\), acid
• D) \(10 ^ { - 6.3 }\), base

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Definitions:

Blastopore

The opening that forms during early embryonic development, which can develop into the mouth or the anus in animals.

Organogenesis

The process during embryonic development where organs form and develop from three germ layers: the endoderm, mesoderm, and ectoderm.

Embryonic Development

The process by which an embryo forms and develops, from fertilization of the ovum to the fetus stage.

Primitive Groove

A feature seen in the early embryonic stage of some animals, marking the beginning of the development of the central nervous system.