1. Determine the number of significant figures in each of the following. (a) 0.7680
(b) 1230.00
(c) 1000.01
(d) 120.0
(e) 1.09 x 104
(f) 0.0080060

Explanation:

a) 3 sig. figures

b) 3 sig. figures

c) 6 sig. figures

d) 2 sig. figures

e) 1.09 × 104 = 113.36 = 5 sig. figures

if it is 1.09 × 10^4, it is 10900 = 3 sig. figures

f) 4 sig. figures

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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