Question

Masa moleculara a urmatoarelor substante:
KOH
KSO4
ALNO3
CAOH
MGOH
CASO4
NA2NO3
ZNCL2
MGCO3
CACO3
HNO3

Answer 1

Mkoh=(2x39+16+1)g/mol=95g/mol
Mk2so4=(2x39+32+4x16)g/mol=174g/mol
Malno3=(35.5+14+16x3)g/mol=97g/mol
Mcaoh=(40+16+1)g/mol=57g/mol
Mmgoh=(24+16+1)g/mol=41g/mol
Mca2so4=(2x40+32+16x4)g/mol=176g/mol
Mna2no3=(2x23+14+16x3)g/mol=108g/mol
Mzncl2=(65+35.5x2)g/mol=136g/mol
Mmgco3=(24+12+16x3)g/mol=84g/mol
Mcaco3=(40+12+16x3)g/mol=100g/mol
Mhno3=(1+14+16x3)g/mol=63g/mol

Sper ca te-am ajutat!
PS.Ar trebui s-a iei meditatii!!!

Answer 2

KOH-46 g/mol
KSO4-125 g/mol
AlNO3-89 g/mol
CaOH-57 g/mol
MgOH-41 g/mol
CaSO4-136 g/mol
Na2NO3-108 g/mol
ZnCl2-131 g/mol
MgCO3-84 g/mol
CaCO3- 108 g/mol
HNO3-63 g/mol