Questions: A chemist needs to know the mass of a sample of aniline to 4 significant digits. He 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 4 significant digits. Otherwise, press the "No solution" button.

Transcript text: A chemist needs to know the mass of a sample of aniline to 4 significant digits. He puts the sample on a digital scale. This is what the scale shows: $\square$ If this measurement is precise enough for the chemist, round it to 4 significant digits. Otherwise, press the "No solution" button.