Three Lab Groups Carried Out an Experiment to Identify the Concentration

question 58

Multiple Choice

Three lab groups carried out an experiment to identify the concentration of sucrose in six solutions. Each unknown solution (1-6) contained one of the following sucrose concentrations: 0.0 M, 0.2 M, 0.4 M, 0.6 M, 0.8 M, and -1.0 M. Cubes of sweet potato (1 cm3) were soaked for 24 hours in each solution and weighed to determine the change in mass. Each data entry represents the average of three sample replicates expressed as percent change in mass following a 24-hour soak in the unknown solutions. From the data provided, which unknown solution has a molarity that most closely reflects the molarity of sweet potato cells?

• A) 2
• B) 3
• C) 4
• D) 5

---

Definitions:

Government Revenues

The total income received by the government from taxes and non-tax sources.

Transfer Payments

Payments made by the government to individuals, such as social security or unemployment benefits, that do not correspond to a current supply of goods or services.

Market Interest Rate

The prevailing rate at which borrowers are willing to borrow money and lenders are willing to lend in the market, often influenced by the central bank's policies.

Investment

The act of allocating resources, usually money, in the expectation of generating an income or profit.