Question

Which of the following measurements contains two significant figures? A. 0.00300 L B. 0.00303 L C. 0.00033 L D. 0.00330 L

Answer 1

Answer:

C. 0.00033 L.

Explanation:

A. 0.00300 L:

It has 3 significant figures that are in bold (0.00300 L).

3 is a significant figure (Nos. from 1 to 9 are considered to be significant numbers).

Zeros to the right of (Nos. from 1 to 9) are countable as significant Nos. if there is a decimal point.

So, It has 3 significant figures.

B. 0.00303 L:

It has 3 significant figures that are in bold (0.00303 L).

3 is a significant figure (Nos. from 1 to 9 are considered to be significant numbers).

Zeros between (Nos. from 1 to 9) are countable as significant Nos.

So, It has 3 significant figures.

C. 0.00033 L:

It has 2 significant figures that are in bold (0.00033 L).

3 is a significant figure (Nos. from 1 to 9 are considered to be significant numbers).

Zeros to the left of (Nos. from 1 to 9) are not countable as significant Nos.

So, It has 2 significant figures.

D. 0.00330 L:

It has 3 significant figures that are in bold (0.00330 L).

3 is a significant figure (Nos. from 1 to 9 are considered to be significant numbers).

Zeros to the right of (Nos. from 1 to 9) are countable as significant Nos. if there is a decimal point.

So, It has 3 significant figures.

So, the right choice is: C. 0.00033 L.

Answer 2

Answer:

c 0.00033 L

Explanation: