What is the molar mass of sodium hydroxide- - Chemistry Q-A

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Standard X

Chemistry

Mole Concept

What is the m...

Question

What is the molar mass of Sodium hydroxide?

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Solution

Step1. Molar mass
The mass of $1$ mole of a substance is called its molar mass.
Step2. Formula for molar mass
Molar mass = $Theatomicmassofelement×numberofatomsgiveninsubscript$
Step3. Molar mass of Sodium hydroxide $(NaOH)$
Molar mass of $NaOH$ = $The atomic mass of Na+ The atomic mass of O+ The atomic mass of H$
= $(22.99 {gmol}^{- 1} {+16.00gmol}^{- 1} {+1.0079gmol}^{- 1})$
= $39.99 {gmol}^{- 1}$
Hence, the molar mass of $NaOH$ is . $39.99 {gmol}^{- 1}$ .

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