A researcher needed three samples of sodium chloride solution, each with a volume of 0.03510 mL. The total volume needed should be reported as

Answer 1

Total volume = 3 x 0.03510 ml = 0.1053 ml

The value 0.03410 has 4 sig. figs. The answer should have 4 sig. figs. Thus the answer would be 0.1053 ml