how many significant figures are in this mass? 3.80×10^{-4} kg
how many significant figures are in this mass? 3.80×10^{-4} kg
Answer
Explanation:
Step1: Recall significant - figure rules
In scientific notation (a\times10^{n}), the significant figures are in the coefficient (a).
Step2: Identify significant figures in the coefficient
For the number (3.80), all non - zero digits (3 and 8) and the trailing zero after the decimal point are significant. So, there are 3 significant figures.
Answer:
3