Exhibit 1-1 Consider the Following Figure That Is a Blow-Up

question 33

Multiple Choice

Exhibit 1-1 Consider the following figure that is a blow-up view of a region of a 50 mL burette to answer the following question(s) . The density of ethanol was measured in two steps. The first step involved measuring its volume using a burette. The mass of this volume was then measured.
-Refer to Exhibit 1-1. If the mass of the ethanol delivered was 28.217 grams, what is the density of this liquid reported to the correct number of significant digits?

• A) 0.7893 g/mL
• B) 0.81 g/mL
• C) 0.790 g/mL
• D) 1.267 g/mL
• E) 0.7784 g/mL

---

Definitions:

Abiotic

Referring to non-living chemical and physical factors in the environment which affect ecosystems.

Biotic

Relating to or resulting from living things, especially in their ecological relations.

Ecosystems

Communities of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

Pyramid of Biomass

A depiction of the decreasing mass of organisms found as one ascends through the food chain.