Cumulative Problems - Chemistry | University of Missouri

How many significant figures are in each number? 0.000312 m. 312,000 s. 3.12 × 10 5 km. 13,127 s. 2000. 78. How many significant figures are in each number? 0.1111 s. ... The radius of our sun is 7.0 × 105 km and it has an average density of 1.4 × 10 3 kg/m 3 . The diameter of the moon is 2.16 × 10 3 mi . 139. Suppose that polluted air has ... ................
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