Question

question 4 / 4
which number does not have three significant figures?
a. 0.0607 ml
b. 0.0670 ml
c. 17.0 ml
d. 700 ml

Explanation:

Step1: Recall significant figure rules

Leading zeros are not significant, zeros between non - zero digits are significant, and trailing zeros in a decimal number are significant. For whole numbers without a decimal, trailing zeros may be ambiguous.

Step2: Analyze Option A

For \(0.0607\space mL\), the leading zeros are not significant. The non - zero digits 6, 0 (between 6 and 7), and 7 are significant. So, it has 3 significant figures.

Step3: Analyze Option B

For \(0.0670\space mL\), leading zeros are not significant. The non - zero digits 6, 7, and the trailing zero (because it is in a decimal number) are significant. So, it has 3 significant figures.

Step4: Analyze Option C

For \(17.0\space mL\), the digits 1, 7, and the trailing zero (because of the decimal) are significant. So, it has 3 significant figures.

Step5: Analyze Option D

For \(700\space mL\), without a decimal, the trailing zeros are ambiguous. We can consider it as having 1 significant figure (if the zeros are just placeholders) or maybe 2 or 3, but in the context of significant figure rules for whole numbers without a decimal, it does not clearly have 3 significant figures (unlike the other options which clearly have 3).

Answer:

D. 700 mL