mr=19,6gCp=40%ms=Cp*mr/100%ms=40*19,6/100ms = 7,84g kwasumH2SO4=98umNaOH=40u2NaOH + H2SO4 ----> Na2SO4 + 2H2O80g NaOH ----- 98g H2SO4xg NaOH -------7,84g H2SO4x = 6,4g NaOHms=6,4gCp=20%mr=ms*100%/Cpmr=6,4*100/20mr = 32g NaOH
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mr=19,6g
Cp=40%
ms=Cp*mr/100%
ms=40*19,6/100
ms = 7,84g kwasu
mH2SO4=98u
mNaOH=40u
2NaOH + H2SO4 ----> Na2SO4 + 2H2O
80g NaOH ----- 98g H2SO4
xg NaOH -------7,84g H2SO4
x = 6,4g NaOH
ms=6,4g
Cp=20%
mr=ms*100%/Cp
mr=6,4*100/20
mr = 32g NaOH