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2009-12-17T19:03:00+01:00
Cl2=35u * 2=70u
p4=31u * 4=124u
KBr=39u + 80u=119u
H2S=2 * 1u + 32u=34u
NH3= 14u + 3 * 1u=17u
Na2SO4=2*23u+32u+4*16u=46u+32u+64u=142u
(NH4)2CO3=2*14u+8*1u+12u+16u*3=96u
Mg3(PO4)2= 24 * 3 + (31 + 16 * 4) * 2 = 334u
MgO=24u+16u=40u
NaF=23u+19u=42u
CaO=16u+40u=56u
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2009-12-17T19:12:32+01:00
Cl2= 35 * 2 = 70u
P4= 31 * 4 = 124u
KBr = 39 + 80 = 119u
H2S= 1 * 2 + 32 = 34u
NH3= 14 + 1 * 3 = 17u
Na2SO4= 23 * 2 + 32 + 16 * 4 = 142u
(NH4)2CO3= (14 + 1 * 4)* 2 + 12 + 16 * 3 = 96u
Mg3(PO4)2= 24 * 3 + (31 + 16 * 4) * 2 = 334u
MgO= 24 + 16 = 40u
NaF= 23 + 19 = 42u
CaO= 40 + 16 = 56u

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