# If the density of a solution is 3.12 g mL-1, the mass of 1.5 mL solution in significant figures is _______. (i) 4.7g (ii) 4680 × 10-3 g (iii) 4.680g (iv) 46.80g

The answer is the option (i) 4.7g

Explanation:

Given, the density of a solution = 3.12 g mL-1

Volume = 1.5 mL

Mass = Volume × Density

= 1.5mL × 3.12g m/L

=  4.68 g which when rounded to 2 significant figures is 4.7 g.

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