A Solution Containing CaCl₂ Is Mixed with a Solution of Li₂C₂O₄

question 185

Multiple Choice

A solution containing CaCl₂ is mixed with a solution of Li₂C₂O₄ to form a solution that is 3.5 × 10^-4 M in calcium ion and 2.33 × 10^-4 M in oxalate ion.What will happen once these solutions are mixed? K_sp (CaC₂O₄) = 2.3 × 10^-9.

• A) Nothing will happen since both calcium chloride and lithium oxalate are soluble compounds.
• B) Nothing will happen K_sp > Q for all possible precipitants.
• C) A precipitate will form as calcium oxalate is not soluble to any extent.
• D) A precipitate will form since Q > K_sp for calcium oxalate.
• E) There is not enough information to determine.

Understand the essential components and types of research methods in psychology.

Identify and explain the importance of external and internal validity in research.

Describe the process and significance of operational definitions in psychological research.

Explain the role of random assignment and sampling techniques in research.

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