Tag: LARN 025

LARN 025 C7D1 Start the following in class: 1.  The required journal focus questions, J25, for today are: Suppose you measured the length of a rectangular piece of aluminum foil as 180.7 mm. a. Which digits resulting from measurement decisions in the laboratory are significant?              180.7 mm = 0.1807 m =1.807 x 1010 nm = 1 8 070 000 000 nm = 0.000 180 7 km b. Which zeros resulting from expressing a measurement in terms of a very large or very small unit of measurement are significant? 2. a. Go to https://socratic.org/chemistry to research the topics brought up in section 3.1 of your text, OR use the PQ5R or SQ5R method to prepare a study guide for section 3.2 of your chemistry text on The International System of Units, SI.  Read section 3.2 in your chemistry text, pages 73 through 79, and as you do, create a study guide using the SQ5R or PQ5R method explained in class and on the distributed...