Portage Chemistry 103 Module 1 Exam Study Guide.

1.1 EXPONENTIAL NUMBERS - Ans The speed of light is 186,000 miles per second. This is 1.86 x 105 (in exponential form) The diameter of an E. coli cell is 0. meters = 8.0 x 10-7 (in exponential form) 0. A number larger than one will have a positive exponent. Move the decimal point nine places to the left to give 4.95 x 109 0.00056 A number smaller than one will have a negative exponent. Move the decimal point 13 places to the right to give 5.6 x 10-13 1.) 0. = smaller than 1 = negative exponent, move decimal 6 places = 4.56 x 10-6 2.) 2.63 x 107 = positive exponent = larger than 1, move decimal 7 places = . 3.) . = larger than 1 = positive exponent, move decimal 6 places = 7.8 x 106 4.) 8.26 x 10-5 = negative exponent = smaller than 1, move decimal 5 places = 0. 5.) 5.38 x 10-3 = negative exponent = smaller than 1, move decimal 3 places = 0.00538 6.) 0. = smaller than 1 = negative exponent, move decimal 4 places = 6.73 x 10-4 7.) 3.82 x 104 = positive exponent = larger than 1, move decimal 4 places = 38200. 8.) . = larger than 1 = positive exponent, move decimal 8 places = 6.23 X 108 1.2: METRIC SYSTEM - UNIT CONVERSIONS - Ans 1 foot (ft)=12 inches (in) 1 kilogram (kg)=1000 grams (g) 1 pound (lb)=16 ounces (oz) 1 gallon (gal)=4 quarts (qt) 1000 milliliters (ml)=1 liter (L) 100 centigrams (cg)=1 gram (g)