If 050 L of a Buffer Containing 1

question 78

Multiple Choice

If 0.50 L of a buffer containing 1.0 mol H₂PO₄− and 1.0 mol HPO₄²⁻ is diluted to a volume of 5.0 L,the pH

• A) increases by 1.
• B) decreases by 1.
• C) increases by 10.
• D) decreases by 10.
• E) remains unchanged.

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Definitions:

Retina

Light-sensitive surface at the back of the eye, consisting of neurons and photoreceptor cells.

Hyperopia

A common vision condition, also known as farsightedness, where distant objects can be seen clearly, but close ones do not come into proper focus.

Farsightedness

A common vision condition where distant objects can be seen clearly, but close ones do not come into proper focus, usually resulting from an eyeball that's too short or a lens that is not round enough.

Visual Field

The entire space that is visible in the side view when the eye concentrates on a single point in the center.