Question

Number of significant figures in 0.0405​

Answer 1

Answer:

there are 3 significant figures

Answer 2

There are three significant figures in 0.0405​.

significant figures = 4, 0, 5

Rules when determining the significant figures:

1) All non-zero numbers are significant.

For example, there are 3 significant digits in 43.2

2) zeros between the non-zero numbers are significant.

For example, there are 5 significant digits in 50.002

3) zeros at the end or right side of a number are significant.

For example, there are 3 significant digits in 30.0

4) zeros preceding the non-zero number are not significant.

For example, there are 2 significant digits in 0.0076