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mariucaviorela
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a)Ce cantitate de sulf exista in 320 g de acid sulfuric? b)n=?

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oanabajenaru475

Aflam masa molara a H2SO4=2. AH+1.AS+4.AO=2.1+1.32+4.16=98 g/mol A=masa atomica . =ori 98 g H2SO4..................32 g S 320 g H2SO4..................X gS X=320.32/98=10240/98=104,48 g S / =linia de fractie

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