A 2154 G Sample of an Unknown Non-Electrolyte Is Dissolved in in 50

question 66

Multiple Choice

A 2.154 g sample of an unknown non-electrolyte is dissolved in 50 g of water (K_f of water = 1.86 °C) . If the solution freezes at -1.23 °C, the molecular mass of the non-electrolyte is ________.

• A)33
• B)65
• C)130
• D)260

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Definitions:

Longitudinal Designs

Research approaches that study participants over a period of time to observe changes or developments in behavior, skills, or attitudes.

Cross-sectional

A research strategy in observational studies where information is gathered from a whole population or a representative portion, analyzed at one specific time.

Longitudinal Designs

Research methods that involve repeated observations of the same variables (e.g., subjects) over short or long periods of time.

Society Changes

The transformations or alterations that occur within societies over time, encompassing shifts in norms, values, and cultural practices.