210+90=300g roztworu
d=m/V
V=300/1,329
V=226cm3=0,226dm3
40g NaOH ------ 1 mol
90g NaOH ------ X
X=2,25 mola
Cm=n/V
Cm=2,25/0,226
Cm=9,96 mol/dm3
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210+90=300g roztworu
d=m/V
V=300/1,329
V=226cm3=0,226dm3
40g NaOH ------ 1 mol
90g NaOH ------ X
X=2,25 mola
Cm=n/V
Cm=2,25/0,226
Cm=9,96 mol/dm3