Question

what is the volume of the water in this 10 ml graduated cylinder? 6.4 ml 6.3 ml 6.6 ml 7.0 ml

Explanation:

Step1: Determine the scale of the graduated cylinder

The graduated cylinder has markings. Each major division (e.g., from 6 to 8) is 2 mL. Each minor division (the smaller lines) can be calculated. Since there are 10 minor divisions between 6 and 8, each minor division is \(\frac{8 - 6}{10}=0.2\) mL.

Step2: Locate the meniscus

The meniscus (the curved surface of the liquid) is at a certain mark. Counting from 6: The meniscus is 3 minor - division above 6.

Step3: Calculate the volume

The volume \(V = 6+3\times0.2\) mL.

Answer:

\(6.6\) mL (corresponding to the option \(6.6\space mL\))