When using the dimensional analysis method, the given units appear below the fraction bar of the conversion ratio and the new units appear above the fraction bar. 9. Perform the following conversions. You should only need one conversion ratio found in one of the Tables of Chapter 2. Give all answers in the proper number of significant figures. Remember that all conversion ratios between metric units or between English units are exact. The conversion between inches and centimeters is also exact. d. 90 ft = ? cm (Hint: 12 in = 1ft) e. 75.123 oz = ? kg f. 9.3 x 105 mm = 7 km 9. 0.000045 m = ? cm h. 89.56 mL = ?L i. 9.00 L = ? mL j. 67.9 cm3 = ? L (recall that 1 cm3 = 1 mL) 11. Convert the following ratios to their equivalents in the required set of units. Give the answer in the proper number of significant figures. 56.98 m = ? cm a. 56.98 = ? b. h 56.98 m = ? Fickel, Introductory Chemistry-Principles and Practice 2-73 Draft 4