who many moles are present in 4g of sodium hydroxide
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molecular weight of NaOH is 40.
Given weight is 4 g
no of moles= weight/ molecular weight
= 4/40
= 0.1 moles
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Moles = Given Mass÷molecular mass
moles=4÷NaoH
=4÷39.997
=0.10 (approx.)
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