a. 0.00052 m
Answer: two significant figures.
Explanation:
The zeros to the left of 52 do not count as signficant figures.
Only, 5 and 2 are significant figures.
b. 9.8 x 10⁴ g
Answer: two significant figures.
Explanation:
Both 9 and 8 count as significant figures. Here there are not additional zeros that might confuse you.
c. 5.050 mg
Answer: four significant figures.
Explanation:
The zeros to the right count as signficiant figjres. So here, 5, 0, 5, and 0 are the significant figures.
d. 8700 ml
Answer: two signficant figures.
Explanation:
Since the two zeros to the right are used to determine the place value of 87, you cannot count them as significant figures. Here, only 8 and 7 are significant figures.
