Ile gramów wodorotlenku sodu potrzeba do zobojętnienia 12g kwasu fosforowego ?
Odp. 14,7 g
mH3PO4=98umNaOH=40uH3PO4 + 3NaOH---->Na3PO4 + 3H2O98g kwasu-------3*40g NaOH12g kwasu---------xg NaOHx=14,7g kwasu
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mH3PO4=98u
mNaOH=40u
H3PO4 + 3NaOH---->Na3PO4 + 3H2O
98g kwasu-------3*40g NaOH
12g kwasu---------xg NaOH
x=14,7g kwasu