A Solution Is Prepared by Dissolving 23

question 30

Multiple Choice

A solution is prepared by dissolving 23.7 g of CaCl₂ in 375 g of water. The density of the resulting solution is 1.05 g/mL. The concentration of Cl^- in this solution is _ M.

• A) 1.20
• B) 6.64 × 10^{- 2}
• C) 1.12
• D) 0.214
• E) 0.562

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Definitions:

Proximal Care

Nurturing practices that involve close physical and emotional contact between caregivers and infants.

Co-sleeping

The practice of parents and young children sleeping in close proximity to each other, usually in the same bed.

Helplessness

A state of incapacity or inability to act or improve one's situation, often leading to feelings of powerlessness.

Dendrites

Branch-like extensions of neurons that receive electrical signals from other neurons, playing a critical role in the transmission of neural information.