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Some Basic Concepts of Chemistry
how many significant figures are present in the fo...

Question:
How many significant figures are present in the following?
(i) 0.0025
(ii) 208
(iii) 5005
(iv) 126,000
(v) 500.0
(vi) 2.0034

Answer:

The significant figures in any number are all certain digits plus one doubtful digit.Certain rules are followed which are as under:

1 all non zero digits in anumber are significant

2 the zeros between two non zero digits are always significant

3 the zeros written to the left of the first non zero digit in a number are non significant.They simply indicate the position of the decimal point.

4 all zeros placed to the right of a decimal point in a number are significant.

(i) 0.0025

There are 2 significant figures.

(ii) 208

There are 3 significant figures.

(iii) 5005

There are 4 significant figures.

(iv) 126,000

There are 3 significant figures.

(v) 500.0

There are 4 significant figures.

(vi) 2.0034

There are 5 significant figures.

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Question:
How many significant figures are present in the following?
(i) 0.0025
(ii) 208
(iii) 5005
(iv) 126,000
(v) 500.0
(vi) 2.0034

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Question: How many significant figures are present in the following? (i) 0.0025 (ii) 208 (iii) 5005 (iv) 126,000 (v) 500.0 (vi) 2.0034

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Question:
How many significant figures are present in the following?
(i) 0.0025
(ii) 208
(iii) 5005
(iv) 126,000
(v) 500.0
(vi) 2.0034