Potassium Fluoride Is Used for Frosting Glass

question 37

Multiple Choice

Potassium fluoride is used for frosting glass. Calculate the molarity of a solution prepared by dissolving 78.6 g of KF in enough water to produce 225 mL of solution.

• A)0.304 M
• B)0.349 M
• C)1.35 M
• D)3.29 M
• E)6.01 M

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Definitions:

Modified Hinge Joint

A type of synovial joint that allows predominantly bending motion like a hinge but with limited rotational movement for added flexibility.

Condylar Joint

A type of synovial joint that allows movement but is constrained to one axis; for example, the joint between the skull and the atlas (first cervical vertebra).

Hyperextension

An excessive extension of a limb or part of the body beyond its normal limit.

Circumduction

A movement at a synovial joint where the limb moves in a circle.