Question

The mass of a box measured by a chemist is 4.45 kg. Two salt samples of 2.01 g and 2.17 g are added to the box. (i) What is the total mass of the box? (ii) The difference in masses of the salt samples to correct significant figures.​

Answer 1

Answer:

Oh...

Explanation:

Sorry.........

Answer 2

Here is your Answer:-

Mass of box = 2.3 Kg

$Mass \: of \: 1 ^{st} \: piece \: = 20.15g \: = \: \frac{20.15}{1000} = 0.02015kg$

$Mass \: of \: 2 ^{nd} \: piece \: = 20.17g \: = \: 0.02017 \: kg$

$\:Total \: Mass \: = \: 2.3 \: + \: 0.02015 \: + \: 0.0201 \\ = \: 2.32032 \: kg \\ = 2.3 \: kg$

Now,

$Difference \: of \: mass \: = 20.17 \: - \: 20.15 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: 0.02 \: g$