Asked Sep 8, 2019

Find the number of significant figures

a. 67.25g

b. 1.021g

c. 20.157g


Expert Answer

Step 1

Rules for Determination of Significant Figures:

[i] All non-zero digits are significant.

For example: 146 cm has three significant figures.

[ii] The zeros placed to the left of the first non-zero digit in the given physical quantity are not significant.

For example: 0.56cm has two significant figures.

Step 2

[iii] The zeros placed to the right of the decimal point are significant.

For example: 15,0cm has three significant figures.

[iv] Th...

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