If the Concentration of Sodium Carbonate in Water Is 12 $\times$

question 12

Multiple Choice

If the concentration of sodium carbonate in water is 12.8 ppm,what is the molarity of Na₂CO₃(aq) ? The molar mass of Na₂CO₃ is 106.0 g/mol.Assume the density of the solution is 1.00 g/mL.

• A) 8.28 \(\times\) 10^-6 M
• B) 1.21 \(\times\) 10^-4 M
• C) 1.36 \(\times\) 10^-3 M
• D) 0.136 M
• E) 0.121 M

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Definitions:

Psychoanalytic Approach

A psychological theory or method which emphasizes unconscious processes and childhood experiences in explaining the human mind and behaviors.

Developmental

Pertaining to the process of growth and change that occurs in human beings or animals over their lifespan.

Unresolved Conflicts

Issues or disputes that have not been resolved, often leading to continued stress or psychological tension.

Dissociative Fugue

A rare psychological state in which a person loses awareness of their identity or other important autobiographical information and may suddenly travel away from their home.