Question

*74. make the following conversions: a. 157 cs to seconds b. 42.7 l to milliliters c. 261 nm to millimeters d. 0.065 km to decimeters e. 642 cg to kilograms f. 8.25×10² cg to nanograms

Explanation:

Step1: Recall the conversion factor for centiseconds to seconds

1 cs = 0.01 s.
157 cs×0.01 s/cs = 1.57 s

Step2: Recall the conversion factor for liters to milliliters

1 L = 1000 mL.
42.7 L×1000 mL/L = 42700 mL

Step3: Recall the conversion factor for nanometers to millimeters

1 nm = 10⁻⁶ mm.
261 nm×10⁻⁶ mm/nm = 2.61×10⁻⁴ mm

Step4: Recall the conversion factor for kilometers to decimeters

1 km = 10000 dm.
0.065 km×10000 dm/km = 650 dm

Step5: Recall the conversion factor for centigrams to kilograms

1 cg = 10⁻⁵ kg.
642 cg×10⁻⁵ kg/cg = 0.00642 kg

Step6: Recall the conversion factor for centigrams to nanograms

1 cg = 10⁷ ng.
8.25×10² cg×10⁷ ng/cg = 8.25×10⁹ ng

Answer:

a. 1.57 s
b. 42700 mL
c. 2.61×10⁻⁴ mm
d. 650 dm
e. 0.00642 kg
f. 8.25×10⁹ ng