Mr(FePO₄)=56+31+16x4=151
Mr[AI₂(CO₃)₃] = 27x2 + (12+16x3)x3=234
Mr(СН₃СН₂СН₂СН₃)=12+3+12+2+12+2+12+3=58
FePO4=56+31+16*4=151
Al2(CO3)3=27*3+12*3+16*3*3=234
CH3CH2CH2CH3=12+1*3+12+1*2+12+1*2+12+1*3=12+3+12+2+12+2+12+3=15+14+14+15=30+28=58
Mr(FePO₄)=56+31+16x4=151
Mr[AI₂(CO₃)₃] = 27x2 + (12+16x3)x3=234
Mr(СН₃СН₂СН₂СН₃)=12+3+12+2+12+2+12+3=58
FePO4=56+31+16*4=151
Al2(CO3)3=27*3+12*3+16*3*3=234
CH3CH2CH2CH3=12+1*3+12+1*2+12+1*2+12+1*3=12+3+12+2+12+2+12+3=15+14+14+15=30+28=58