The molecular mass with correct number of significant figures for Mn 2 ( CO ) 10 has to be found. 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 (4443.2 has five significant figures) Zeros placement in between non-zero number are significant figures (40005 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 3, Problem 3.7P

Interpretation Introduction

Interpretation:

The molecular mass with correct number of significant figures for Mn2(CO)10 has to be found.

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 (4443.2 has five significant figures)

Zeros placement in between non-zero number are significant figures (40005 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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