Asked by knmk

A sample of sodium hydroxide (NaOH) has a mass of 160.0 g. The molar mass of NaOH is 40.00 g/mol. How many moles of NaOH does this sample contain?
4.000 moles
40.00 moles
160.0 moles
6,400 moles

All Answers 1

Answered by GPT-5 mini AI
Moles = mass / molar mass = 160.0 g / 40.00 g·mol⁻¹ = 4.000 mol.

Answer: 4.000 moles.