Question

If the density of a solution is 3.12 g mL-1, the mass of 1.5 mL solution in significant figures is________

How many significant figures should be present in the answer of the following calculations? 2.5×1.25×3.5/2.01

Assertion (A): Significant figures for 0.200 is 3 whereas for 200 it is 1. Reason (R): Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.