A Researcher Needs 800 ML of a 25 MM Phosphate

question 59

Multiple Choice

A researcher needs 800 mL of a 25 mM phosphate buffer.The stock solution of the buffer is 100 mM.How much stock solution should be used to make the 25 mM phosphate buffer?

• A) 31 mL
• B) 310 mL
• C) 200 mL
• D) 2.0 mL
• E) 0.2 mL

---

Definitions:

Marginal Revenue Product

The extra income earned by utilizing an additional unit of a production input.

Computer Software Engineers

Professionals who apply engineering principles to design, develop, test, and evaluate software and systems that enable computers to perform their applications.

Productivity

A measure of the efficiency of production, often quantified as the ratio of output to inputs in the production process.

Laser Printers

Devices that use laser technology to produce high-quality text and graphics on paper.