If the density of the solution is 3.12 g ml-1, then what will be the mass of the 1.5 ml solution in two significant figures?
1. | \(4.4~\mathrm{g}\) | 2. | \(4680 \times 10^{3} ~\mathrm{g}\) |
3. | \(4.7~\mathrm{g}\) | 4. | \(46.80~\mathrm{g}\) |
Hint: Density =
Calculate the mass of the solution
amount of substance = density x volume of solution
In these operations, the result must be reported with no more significant figures as in the measurement with the few significant figures. Hence, answer will contains two significant figure
amount of substance = 3.12 x 1.5
= 4.7 g
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