Mr (Cu O)

Mr (P2O5)

Mr (CO2)

Mr (BaO)

Mr (ca) (OH) 2

Mr (NaOH)

Mr (Ba) (OH) 2

Mr (NaCL)

Mr (Na2SO4)

Mr (CaCo3)

Mr (P2O5) = 30·2+16·5=380

Mr (CO2) = 12+16·2=44

Mr (BaO) = 137+16=153

Mr ((Ca) (OH)) 2 = (40·2) + (16+1·2) = 114

Mr (NaOH) = 22+16+1=39

Mr ((Ba) (OH) 2 = (137·2) + (16+1·2) = 308

Mr (NaCl) = 22+35=57

Mr (Na2SO4) = 22·2+32+16·4=140

Mr (CaCo3) = 40+59·3=217

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