Oblicz masę cząsteczkową sodu :
Na2CO3 x 10H2O
m Na2CO3 x 10 H20 = m Na2CO3 + m 10 H2O = (2*23u + 12u + 3*16u) + 10*(2*1u + 16u)= 106 u + 180 u = 286 u
2*23u+12u+3*16u+10*(2*1u+16u)=46u+12u+48u+10*18u=106u+180u=286u
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m Na2CO3 x 10 H20 = m Na2CO3 + m 10 H2O = (2*23u + 12u + 3*16u) + 10*(2*1u + 16u)= 106 u + 180 u = 286 u
2*23u+12u+3*16u+10*(2*1u+16u)=46u+12u+48u+10*18u=106u+180u=286u