Question

11/22 how many significant figures: 153.0 ml 3 2 4 1

Explanation:

Step1: Recall significant figure rules

Significant figures: Non - zero digits are significant. Zeros between non - zero digits are significant. Trailing zeros in a decimal number are significant.
For the number 153.0: The digit 1 is significant, 5 is significant, 3 is significant, and the trailing zero after the decimal is also significant.

Step2: Count the significant figures

Counting the significant figures in 153.0: 1, 5, 3, and 0 (the trailing zero after the decimal) are all significant. So we have 4 significant figures.

Answer:

4 (corresponding to the orange option with "4")