What is the molar mass of sodium hydroxide NaOH

Pass IELTS, JAMB, WAEC, & more with EduPadi CBT App

Practice questions, get instant scores, understand solutions with smart AI insights, and track your progress.

What is the molar mass of sodium hydroxide (NaOH)?

index-0

22 g/mol

index-1

40 g/mol

index-2

56 g/mol

index-3

62 g/mol

Correct Answer: B

The molar mass of sodium hydroxide (NaOH) can be calculated by adding up the atomic masses of its constituent elements.

The atomic masses of sodium (Na), oxygen (O), and hydrogen (H) are as follows:

Sodium (Na) = 22.99 g/mol

Oxygen (O) = 16.00 g/mol

Hydrogen (H) = 1.01 g/mol

To calculate the molar mass of NaOH, we sum the atomic masses:

Molar mass of NaOH = Atomic mass of Na + Atomic mass of O + Atomic mass of H

= 22.99 g/mol + 16.00 g/mol + 1.01 g/mol

= 40 g/mol