Question

D. Express the following sum to appropriate
number of significant figures :
a. 2.3 x 10 mL + 4.22 x 10' mL + 9.04 x
10 mL + 8.71 x 10 mL; ​

Answer 1

Answer:

The significant figure is 2

Answer 2

Answer:

In significant figure the value is  $2.427\times 10^2$

Explanation:

Given : Expression $2.3\times 10\text{ ml }+ 4.22\times 10\text{ ml }+ 9.04\times 10\text{ ml }+ 8.71\times 10\text{ ml }$

To find :  Express the following sum to appropriate  number of significant figures?

Solution :

Expression $2.3\times 10\text{ ml }+ 4.22\times 10\text{ ml }+ 9.04\times 10\text{ ml }+ 8.71\times 10\text{ ml }$

Take the common term,

$10(2.3+ 4.22+ 9.04+ 8.71)$

$10(24.27)$

or $2.427\times 10^2$

Therefore, In significant figure the value is  $2.427\times 10^2$