Na2SO4
m= 2* 23u + 32u+ 4* 16u= 142 u
CuS
m= 64u + 32u= 96u
Ca3(PO4)2
m= 3*40u+ 2*31u+ 8*16u = 310u
m(Na₂SO₄)=2·23u+32u+4·16u=46u+32u+64u=142u
m(CuS)=64u+32u=96u
m(Ca₃(PO₄)₂)=3·40u+2·31u+8·16u=120u+62u+128u=310u
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Na2SO4
m= 2* 23u + 32u+ 4* 16u= 142 u
CuS
m= 64u + 32u= 96u
Ca3(PO4)2
m= 3*40u+ 2*31u+ 8*16u = 310u
m(Na₂SO₄)=2·23u+32u+4·16u=46u+32u+64u=142u
m(CuS)=64u+32u=96u
m(Ca₃(PO₄)₂)=3·40u+2·31u+8·16u=120u+62u+128u=310u