Question

Carry out the following calculations and provide the answers to the correct number of significant figures:- 5.8.1 852 / 1.37
-5.8.2 2.3752 × 4.35
- 5.8.3 410.538 + 1.54 + 2.3

Answer 1

Answer:

5.8.1 622

5.8.2 10.3

5.8.3 410

Explanation:

5.8.1

852/1.37 = 621.8978102

The number of significant figures in 852 = 3

The number of significant figures in 1.37 = 3

Therefore, the answer must have 3 significant figures

Answer to the correct number of significant figures = 622

5.8.2

2.3752 × 4.35 = 10.33212

The number of significant figures in 2.3752 = 5

The number of significant figures in 4.35 = 3

Therefore, the answer must have, the minimum of both i.e. 3 significant figures

Answer to the correct number of significant figures = 10.3

5.8.3

410.538 + 1.54 + 2.3 = 414.378

The number of significant figures in 410.538 = 6

The number of significant figures in 1.54 = 3

The number of significant figures in 2.3 = 2

Therefore, the answer must have, the minimum significant figures of the three numbers i.e. 2 significant figures

Answer to the correct number of significant figures = 410