Answer to Question #114134 in General Chemistry for mike

Question

Express the following numbers in scientific notation to three significant figures.
(i). 0.000375
(ii). 82300
(iii). 0.000 000 008 000

Answer 1

(i). 0.000375 

It has three significant digits

Scientific Notation: 3.75 × 10^-3

(ii) 82300  

It has three significant digits

Scientific Notation: 82.3 x 10⁴

(iii) 0.000000008000

8.00 x 10^-9 now it has 3 significant figures