Answer to Question #148063 in General Chemistry for Javier

Question

In which pair of numbers do both values contain three significant figures?

a. 540 and 544

b. 50.4 and 0.054

c. 0.0504 and 5040

d. 5.04 and 5400

Answer 1

The answer is option C

0.0504 and 5040 contain three significant figures each.

The rules of significant figures are:

1. All non-zero numbers are significant.

2. Zeros between two non-zero digits are significant.

3. Leading zeros are not significant.

4. Trailing zeros to the right of the decimal are significant.

5. Trailing zeros in a whole number with the decimals shown are significant.