Significant Figures

Question 1

Rule 1

Answer 1

All nonzero digits are significant

Question 2

Rule 2

Answer 2

Interior zeros are significant
54034= 5sfs

Question 3

Rule 3

Answer 3

Trailing zeros that fall RIGHT after a decimal point are significant
345.500 = 6 sfs
Trailing zeros count for there is a decimal place

Question 4

Rule 4

Answer 4

Trailing zeros that fall before a decimal point are significant
5600. = 4 sfs
Whole number with a decimal the zeros count

Question 5

Rule 5

Answer 5

Leading zeros are NOT significant
0.000045 = 2 sfs

Question 6

Rule 6

Answer 6

Trailing zeros at the end of a number but before an implied decimal point are ambiguous and should be avoided
5600= ? Ambiguous