Question

How many moles of sodium hydroxide are present in 40 grams of NaOH?

Answer 1

Required Answer:

☑Their respective atomic weights are: Na - 23,0 - 16 and H - 1, so the molecular weight, is 23 + 16 + I = 40. Thus 40 grams of NaOH equals one mole of NaOH, and a 1 molar solution of NaOH will contain 40 grams of NaOH

Answer 2

Answer:

Given That --

The molar mass of NaOH is 40 g/mol.

Therefore

The number of moles of NaOH = Mass of NaOh / Molar Mass

The number of moles of NaOH =

Thus --

= 40g/upon40g/ mol

=1mol

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