Advanced Chemistry Past Paper PDF

ADVANCED CHEMISTRY (ELECTIVE) SIGNIFICANT FIGURES , S CIENTIFIC NOTATIONS, & CONVERSIONS LEARNING TASKS Please complete the following problems on a whole sheet of paper, show your solution. Significant Figures Adding Significant Figures ▪ Problem: Add 12.345 and 6.78 ▪...

ADVANCED CHEMISTRY (ELECTIVE) SIGNIFICANT FIGURES , S CIENTIFIC NOTATIONS, & CONVERSIONS LEARNING TASKS Please complete the following problems on a whole sheet of paper, show your solution. Significant Figures Adding Significant Figures ▪ Problem: Add 12.345 and 6.78 ▪ Problem: Add 0.0045 and 0.00089 Subtracting Significant Figures ▪ Problem: Subtract 8.90 from 12.003 ▪ Problem: Subtract 0.0023 from 0.0019 Multiplying Significant Figures ▪ Problem: Multiply 2.345 by 6.78 ▪ Problem: Multiply 0.0045 by 0.00089 Dividing Significant Figures ▪ Problem: Divide 12.003 by 8.90 ▪ Problem: Divide 0.0019 by 0.0023 Scientific Notations Adding Scientific Notations ▪ Problem: Add 3.45 x 105 and 6.78 x 105 ▪ Problem: Add 2.34 x 10-3 and 5.67 x 10-4 Subtracting Scientific Notations ▪ Problem: Subtract 6.78 x 105 from 3.45 x 105 ▪ Problem: Subtract 5.67 x 10-4 from 2.34 x 10-3 Multiplying Scientific Notations ▪ Problem: Multiply 3.45 x 105 by 6.78 x 105 ▪ Problem: Multiply 2.34 x 10-3 by 5.67 x 10-4 Dividing Scientific Notations ▪ Problem: Divide 3.45 x 105 by 6.78 x 105 ▪ Problem: Divide 2.34 x 10-3 by 5.67 x 10-4 Dimensional Analysis/Factor Label Method – Show your solution. Converting Units of Density Problem: The density of gold is 19.3 grams per cubic centimeter. What is the density of gold in pounds per cubic inch? (1 gram = 0.00220462 pounds, 1 centimeter = 0.393701 inch) Converting Units of Speed Problem: A car is traveling at 65 miles per hour. How many kilometers per hour is this? (1 mile = 1.609 km) Converting Units of Volume Problem: A swimming pool is 25 meters long, 10 meters wide, and 2 meters deep. How many gallons of water can it hold? (1 cubic meter = 264.172 gallons) Converting Units of Area Problem: A farmer owns a square field that is 50 meters on each side. What is the area of the field in square feet? (1 meter = 3.281 feet) Converting Units of Length Problem: A marathon is 26.2 miles long. How many kilometers is this? (1 mile = 1.609 km) Prepared by: MS. AVEGAIL C. SANOY Subject Teacher