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Interactioneaza cu oxigenul 128 de grame de sulf. Ce cantitate de dioxid de sulf in grame si in moli se formeaza?
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Răspuns :


     128g             xg
        S  +  O2  = SO2                                                                                                                32g               64 g
MSO2 =32+2.16=64-------1mol=64g
x=128.64:32=256gSO2                                                                                                       1mol SO2---------64 g                                                                                              Y----------------------256g SO2                                  Y=256:64=4 moli SO2