CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT
2nd Edition
ISBN: 9781260592320
Author: Burdge
Publisher: MCG
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Question
Chapter 1.5, Problem 4PPC
Interpretation Introduction
Interpretation:
The number of colored objects in the given squares has to be identified and has to indicate the number of significant figures also.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (9443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (90003 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
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Chapter 1 Solutions
CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT
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