A Solution Is Prepared by Adding 30

question 64

Multiple Choice

A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The partial pressure of water above the solution is ________ Torr. The vapour pressure of pure water at 55 °C is 0.1553 bar. The MW of lactose is 342.3 g mol^-1.

• A)1.670
• B)94.1
• C)169.4
• D)116.3
• E)92.7

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Definitions:

Inferences

The act of drawing conclusions based on evidence and reasoning rather than explicit statements.

Information Processing Theorist

An information processing theorist studies how human minds process and understand information, focusing on mechanisms like perception, memory, and problem-solving.

Thinking Stops

describes a cessation or significant interruption in the cognitive process, often due to stress, overwhelming information, or mental health issues, preventing effective problem-solving or decision-making.