Question #f88ab

1 Answer
Dwight
Jan 28, 2018

This is one-half of a mole

Explanation:

To find molar mass of NaOH, you add the atomic masses of the elements in it:

23+16+1=40 g/"mol"23+16+1=40gmol

Next divide the mass you are given by the molar mass:

(20g)/(40g/("mol"))=0.5 20g40gmol=0.5mol

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