Question:
A chemist needs to know the mass of a sample of Na₂SO4 to 2
Last updated: 7/8/2022

A chemist needs to know the mass of a sample of Na₂SO4 to 2 significant digits. She puts the sample on a digital scale. This is what the scale shows: If this measurement is precise enough for the chemist, round it to 2 significant digits. Otherwise, press the "No solution" button.