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Course: UP Class 11 Chemistry > Unit 1

Lesson 3: Percentage composition

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Finding mass percent, empirical and molecular formula

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You might need: Calculator,Periodic table

Compound	Molar mass ( $g / mol$ ‍)
$NaCN$ ‍	$49.0$ ‍
$NaN3$ ‍	$65.0$ ‍
$NaOH$ ‍	$40.0$ ‍
$NaCl$ ‍	$58.4$ ‍

Based on the information in the table, which of the following compounds contains the greatest percentage of sodium by mass?

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Molecular and empirical formula