W Ilu gramch H2S zawarta jest taka sama ilość moli atomów wodoru , co w 2 molach H3PO3 . niech mi ktoś z tym pomoże :)
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1mol H3PO3------3mole at. wodoru
2mole H2PO3-------x moli at. wodoru
x = 6moli at. wodoru
mH2S=34u
34g H2S-------2mole at. wodoru
xg H2S---------6moli at. wodoru
x = 102g H2S