Cm=n/V
V=200 cm3= 0,2 dm3
Cm= 0,2 mol/dm3
n= Cm*V=0,2*0,2= 0,04 mola
MNaOH= 40 g/mol
n= ms÷M
ms=n*M
ms= 0,04*40= 1,6 g
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Cm=n/V
V=200 cm3= 0,2 dm3
Cm= 0,2 mol/dm3
n= Cm*V=0,2*0,2= 0,04 mola
MNaOH= 40 g/mol
n= ms÷M
ms=n*M
ms= 0,04*40= 1,6 g