CHEM 121 LAB REPORT 2026 EXPERIMENTAL DESIGN AND RESULTS INTERPRETATION LEARNING OUTLINE

CHEM 121 LAB REPORT 2026 EXPERIMENTAL
DESIGN AND RESULTS INTERPRETATION
LEARNING OUTLINE

◉Analytical balance, thermometer, and pipet. Answer: What 3
instruments were used in Experiment 1?


◉1). Calibrated a pipet
2). Measured the density of water
3). Measured the density of antifreeze. Answer: What did you
accomplish in Experiment 1?


◉Insert the tip of the pipet into a liquid and squeeze the rubber bulb
to get the correct amount of liquid you want to measure, or you can
use your finger to get the liquid up. Answer: How do you use a pipet?


◉density= mass/volume. Answer: What is the formula for density?


◉1).Silicon dioxide
2).Sodium chloride
3).Calcium carbonate. Answer: What are 3 of the main components
of beach sand?

, ◉Having the same composition throughout the mixture, often called
a solution
- Ex. vinegar and household amonia. Answer: What is a
homogeneous mixture?


◉Having varying composition throughout the mixture
- Ex. Dirt with pebbles. Answer: What is a heterogeneous mixture?


◉A physical property used to separate mixtures. Answer: What is
solubility?


◉1). Filtering
2). Solubility
3). Decantation
4). Sedimentation
5). Extraction
6). Sublimation. Answer: What are 6 methods of separating
mixtures?


◉Recording mass of evaporating dish with and without beach sand,
add water, decant the solution to separate the components, repeat
with a new liquid, filter out the liquid using a filter paper. Answer:
What was the procedure and result of Experiment 2?