CHEM 1021 Lecture Notes - Lecture 6: Microgram, Horse Length, Si Base Unit
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Sig figs with calculations (1. 98 x 10^3cm) + (3. 2700 x 10^2 cm) - (1. 9 x 10^-1 cm) (1980 + 327. 00 - . 0. 19) cm. How many significant figures should be reported in the answer to the following calculation? (1. 25ml)(2. 6g/ml) + 10. 72 g. How is should be solved. (1. 25ml)(2. 6g/ml) = 3. 25000g. Si units: know the name and the symbol for the units in the red box plus the joule (j) 0. 01 mg --> 1 mg ---> 10^-3g ---> 10^-6 g ----> 1micrograms. Or (0. 01 mg) (1000micrograms/ 1mg) = 10 micrograms. Common metric volume units l, ml and cm^3. Convert these volume units: a. 729 l to ml. 729 x 1000 = 729000 ml or 7. 29 x 10^5 ml a. 1. 00 m^3 to l: 1. 00 m^3 --> 1 m^3 ---> 10^3dm^s ---> 1 dm^3 ---> 1 l = 1. 00 x 10^3 l a. i. a. ii. 10 dm = 1m (10dm)^3 = (1 m)^3 a. i. 1. Suppose you measure a volume of 1 cm^3.
