Question

The number of molecule of NaoH in 2 grams. dont see it from google and tell pls how to calculate moles in grams​

Answer 1

No. Of moles = given mass / molar mass

Molar mass of NaOH =

mass of na + mass of O + mass of H

23g + 16g + 1g

40g

No. Of moles = 2g / 40g = 0.05 moles

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