A 100 ML Sample of a Saturated CaSO₄ Solution Is

question 82

Multiple Choice

A 100 mL sample of a saturated CaSO₄ solution is evaporated to dryness. The water solvent all evaporates and leaves behind a solid residue of CaSO₄ that weighs 0.23 g. The CaSO₄ would be classified as

• A)insoluble in water.
• B)slightly soluble in water.
• C)soluble in water.
• D)very soluble in water.

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Definitions:

Naturalistic Observation

A technique of research that involves watching subjects in their natural habitats without any alterations made by the researcher.

Discretionary Income

Discretionary income is the amount of an individual's income left for spending, investing, or saving after taxes and personal necessities (like food and shelter) have been paid.

Positively Correlated

A relationship between two variables where an increase in one variable is associated with an increase in the other.

Scientific Method

A systematic, organized series of steps that helps ensure objectivity and consistency in exploring a social or scientific question.