Determine the number fo significant figures in the following measured quanttities:
(i) `478 cm`, (ii) `7.01 g`
(iiI) `0.852 m`, (iv) `0.034 kg`
(v) `1.410xx10^(22)` atoms, (vi) `8000 mL`.
Strategy: Use the simple rules mentioned above to count the number of significant figures.

Explanation

(i) Three, using 1
(ii) Three, using rule(2) (ii)
(iii) Three, using rule2 (iv)
(iv) Two, using rule 2(i)
(v) Four, using rule 1,
(vi) This is an ambiguous case as the number of significant figures may be one `(8xx10^(3))`. two `(8.0xx10^(3))`, three `(8.00xx10^(3))`, or four `(8.000xx10^(3))`.