A Solution Is Prepared by Dissolving 27

question 83

Multiple Choice

A solution is prepared by dissolving 27.7 g of CaCl₂ in 375 g of water. The density of the resulting solution is 1.05 g/mL. The concentration of CaCl₂ is ________% by mass.

• A)6.88
• B)7.22
• C)0.0722
• D)0.0688
• E)6.24

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Definitions:

Meissner Corpuscles

Nerve endings in the skin that are specialized to detect light touch sensitivity.

Pacinian Corpuscle

Named for Italian anatomist Filippo Pacini (1812–1883). See lamellated corpuscle.

Sensory Receptor

A specialized cell or nerve ending that responds to specific stimuli, such as light, sound, or touch, and converts it into neural signals.

Deep Pressure

A type of firm tactile sensory input that is often calming and is used therapeutically to reduce chronic stress and anxiety.