Question

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

o 39 ml
o 35.9 ml
o 37.5 ml
o 39.4 ml

Explanation:

Step1: Identify scale division

The graduated - cylinder has markings from 30 to 40 mL. The space between 30 and 40 mL is divided into 10 equal parts. So, each division represents 1 mL.

Step2: Read the meniscus

The meniscus (the curved surface of the liquid) is at a level slightly above 37 mL and below 38 mL. Estimating the value between the markings, we can say the measurement is 37.5 mL as it is halfway between 37 and 38 mL.

Answer:

37.5 mL