1oblicz stopien utlenienia atomów w cząsteczkach BaSO4,AI(OH)3,H3PO4,KOH,MGSO4,AIPO4,AI2(SO4)3,HCL.CO3 ZAD2 OBLICZ MASE 5 MOLI SIARCZANU(VI)MAGANZU ZAD3 OBLICZ LICZBE MOLI TLENU POTRZEBNA DO SPALENIU W TLENIE 3 MOLI MAGNEZU ZAD4 OBLICZ LICZBE MOLI ZAWARTA W 16 G kno4 zad5o oblicz mase 12 moli weglanu wapnia zad
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zad.1 Ba- II, S- VI, O- (-II)
Al- III, O- (-II), H- I
H- III, P- V, O- (-II)
K- I, O- (-II), H- I
Mg- II, S- VI, O- (-II)
Al- II, S- VI, O- (-II)
H- I, Cl- (-I)
C- VI, O- (-II)
zad.2
M= 5*[ 24+32+(4*16)]= 600g/mol
zad.3
2Mg + O2-> 2MgO
3mole Mg- 2mole Mg
x moli O2- 1mol O2
x= 3/2 mola O2
zad.4
M kno4= 117g
1mol- 117g
x moli-16g
x=0,14mola
zad.5
M= 12*[40+12+(3*16)]=1200g/mol