Question

Calculati masele moleculare urmatoarelor substante ​
VA ROG FRUMOS

Answer 1

Răspuns:

Explicație:

M Na2SO4= 2.23 + 32 + 4.16=142---------> 142g/moli

MZn(NO3)2 = 64 + 2.14 + 6.16= 1`88---------> 188g/moli

MP2O3= 2.31 + 3.16= 110---------> 110g/moli

MH2CO3= 2 + 12 + 3.16=62--------> 62g/moli

MFe2O3= 2.56 + 3.16=160-----> 160g/moli

MCl2 O 7= 2.35,5 + 7.16=183-------> 183g/moli

MAl(OH)3=  27 + 3.16 +3=78----> 78g/moli

MK2 CO3= 2.39 + 12 + 3.16=138--------> 138g/moli

MFeCl3= 56 + 3.35,5=162,5-----> 162,5g/moli