The number of significant figures in 7.3748 × 10^-1 dm is A)5. B)6. C)3. D)7. E)4.

Question

Quizplus · Accepted Answer

The number of significant figures is determined by the digits in the number itself, excluding leading zeros, trailing zeros that are not to the right of a decimal point, and placeholders. In 7.3748, there are 5 digits (7, 3, 7, 4, 8) that are all significant, regardless of the exponent part (× 10^-1) which does not affect the count of significant figures.

The Number of Significant Figures in 7