Question

1. report the measurement below, in milliliters, to the correct number of significant figures.

o 7.60 ml
o 7.50 ml
o 7.40 ml
o 75 ml

Explanation:

Step1: Identify the scale on the cylinder

The cylinder is marked in milliliters. The major - scale intervals are 1 mL (e.g., from 7 to 8), and the minor - scale intervals are 0.1 mL.

Step2: Determine the position of the meniscus

The bottom of the meniscus (the curved surface of the liquid) is between 7.5 and 7.6 mL. Since the meniscus is closer to 7.5 mL, we estimate the measurement to be 7.50 mL. The last digit (0) is an estimated digit.

Answer:

7.50 mL