Question

Exercitiul 2 va roggggg

Answer 1

Răspuns:

Explicație:

M FeCl2= AFe + 2 ACl

             = 56 + 2 . 35,5

            =127--------> 127g/moli-------> 1mol= 127 g

MNi SO4 = 59 + 32 + 4.16 =155------> 155g/moli

MCuSO4= 64 + 32 + 4.16=160------> 160g/moli

MCr(NO3)3 = 52 + 3.14 + 9 .16=238----->238g/moli

M HCl=1+35,5= 36,5 -----> 36,5 g/moli

MHNO3= 1+ 14 + 3.16=63 ------> 63g/moli

MH2SO4= 2 + 32 + 4.16=98-------> 98g/moli