A Solution Is Prepared by Adding 40

question 53

Multiple Choice

A solution is prepared by adding 40.00 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 vapor pressure of pure water at 55 °C is 118.0 torr. The MW of lactose is 342.3 g/mol.

• A)2.216
• B)125.5
• C)225.9
• D)115.8
• E)86.5

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Definitions:

Internal Rate of Return Method

A capital budgeting technique used to evaluate the profitability of investments or projects, determining the discount rate that makes the net present value of all cash flows from a particular project equal to zero.

Present Value Concepts

Financial principles that determine the current worth of a future sum of money or stream of cash flows, given a specified rate of return.

Cash Payback Period

The time it takes for a project or investment to generate enough cash to recover the initial investment outlay.

Obsolescence

The process of becoming outdated or no longer used, often as a result of new inventions, technologies, or changes in consumer preference.