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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry2 Marks
Question
What is the difference between 5.0g and 5.00g?
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Answer

Though the two values seem to be equivalent but scientifically they are different. 5.0g has two significant figures and hence, its precision is 0.1 part in 5, i.e. 20 ppt 5.00 has three significant figures and hence, its precision is 0.01 parts in 5, i.e. 2 ppt. Hence, 5.00g is more precise measurement than 5.0g.

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