Question

Perform the following calculation, giving the answer in the correct number of significant digits. (1.145 x 109 g/mol) (0.0035 mol)/(8.57 x 10 g/mL)=

Answer 1

Answer:

The answer is 0.005097 mL.

Explanation:

Significant figures : The figures in a number which express the value of the magnitude of a quantity to a specific degree of an accuracy is known as significant digits.

Given :

$x=\frac{(1.145 x 109 g/mol)\times (0.0035 mol)}{(8.57 x 10 g/mL)}$

$x=\frac{0.4368 g}{8.57\times 10 g/mL}=0.005097053 mL$

$x=0.005097053 mL\approx 0.005097 mL$