Question

masteryconnect
wilson, mak yla
dtal: ch-term 1 - unit 1 assessment - 25-26
what is the volume shown on this graduated cylinder (using the correct number of significant figures)?
∘ 57 ml
∘ 570 ml
∘ 43 ml
∘ 43.0 ml
(image of a graduated cylinder with a close-up view of the scale between 40 and 50)

Explanation:

Step1: Analyze the graduated cylinder scale

The close - up view of the graduated cylinder shows that between 40 mL and 50 mL, we need to determine the volume. Let's assume the graduation markings. If we look at the meniscus (the curved surface of the liquid), we can see that the liquid level is at 43.0 mL. Let's check the significant figures. The graduated cylinder's scale: if the major divisions are 10 mL (from 40 to 50) and the minor divisions (if we assume) allow us to estimate to one decimal place or a precise value. But looking at the options, 43.0 mL is a precise measurement with three significant figures, which is appropriate for a graduated cylinder reading (where we can estimate one digit beyond the smallest division). The other options: 57 mL is too high, 570 mL is way too high, 43 mL is less precise (two significant figures) compared to 43.0 mL (three significant figures) which is more appropriate for a graduated cylinder reading.

Step2: Eliminate incorrect options

• 57 mL: The liquid level is not near 50 - 60, so this is wrong.
• 570 mL: The graduated cylinder is not that large, so this is wrong.
• 43 mL: While 43 is close, 43.0 mL is more accurate as we can estimate the tenths place (the zero shows that we estimated the last digit), so this is less precise than 43.0 mL.

Answer:

43.0 mL