Question

Helium has a density of 1.79 x 10-4 g/mL at standard temperature and pressure. A balloon has a volume of 6.3 liters. Calculate the mass of helium that it would take to fill the balloon. Be sure to follow significant figure rules when calculating the answer. 35,000 g 1.1 x 10-3 g 2.8 x 10-5 g 1.1 g

Answer 1

The real answer is actual 1.1

It is not 1.1x10⁻³ i have gotten them checked and that one was wrong.