Fehler:
P %2B NaOH %2B H2O %3D Na%5BP%28OH%294%5D %2B H2
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Unerwartets Zeichen ('%')P %2B NaOH %2B H2O %3D Na%5BP%28OH%294%5D %2B H2
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Unerwartets Zeichen ('%')