1.5 Problem Set
- Dimensional analysis
- How many millimeters are in 1.31 inch?
- The density of a soil sample was 1.47 g/cm3. This is equivalent to how many kg/m3?
- 1 “acre furrow slice” is a volume of soil approximately 6.0 inches deep occupying exactly 1 acre (43,560 ft2) of land surface. Estimate the volume in m3.
- Manipulation of exponents
- 106 × 102 = _____
- (102)1/3 = _____
- (10-5 × 103) ÷ 102 = _____
- Scientific notations
- Write in scientific notations: 0.002413 and 24000
- Express 3.937 * 10-2 as a decimal number
- (7.2 × 105) ÷ (1.2 × 10-2) = _____
- Logarithms
- Log10 50.0 = _____
- If pH = 7.42, what is the concentration of hydrogen ion?
- ln (10.) = _____
- Algebraic manipulations. Solve for x.
- 5x + 2 = 12
- (12x + 24)/ 2 = 10 x
- (9 x – 2)/ 3 = (4 x + 1)/ 2
- Significant figures
- Give the number of significant figures for: 240, 0.024, 0.0240, 240.0
- 2.540 – 1.31 = _____
- (2.540 × 102) × (1.31 × 10) = _____