How many significant figures are present in the measurement ? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

In scientific notation ($N \times 10^n$), the exponent part ($10^n$) does not dictate precision and is entirely ignored for significant figure counting. Only the coefficient $N$ ($2.653$) is evaluated. Since all four digits are non-zero, it contains 4 significant figures.