CHEM 1033- Midterm Exam Guide - Comprehensive Notes for the exam ( 24 pages long!)

• School: Temple University
• Department: Chemistry
• Course: CHEM 1033
• Professor: danielkim

Document Summary

There are two types of general observations quantitative and qualitative. Quantitative observations record the numerical value and the units associated with the measurement. Significant figures if an object is 2 meters long is there a difference to record a value of 2 meters, 2. 0 meters or. There is a significant difference between these measurements. The extra digits, in this case zeros, inform where the uncertainty is in the measurement, or rather, how precisely the measurement is made. Every measurement is represented by its significant digits (or figures), which consist of all the digits that are known for certain, plus one additional digit that is an estimate. All (cid:374)o(cid:374)ze(cid:396)o a(cid:396)e sig(cid:374)ifica(cid:374)t. the (cid:862)t(cid:396)aili(cid:374)g(cid:863), (cid:862)captive(cid:863), a(cid:374)d (cid:862)leadi(cid:374)g(cid:863) ze(cid:396)os (cid:396)e(cid:395)ui(cid:396)e so(cid:373)e thought. When determining significant figures, be sure to pay attention to reported values and think about the measurement and significant figures in terms of what is reasonable or likely when evaluating whether the value makes sense.