Question

va roggg urgent .......
masa molara la toate : hidrogen de calciu var stins , hidroxid de aluminiu , hidroxid de magneziu , acid clorhidric , acid sulfuric , acid azotic , carbonat de calciu , sulfat de cupru , azotat de argint ​

Answer 1

Răspuns:

Explicație:

Ca(OH)2

M=40+32+2=74------>74g/moli     [ 1mol=74g  ]

Al(OH)3

M=27 +3.16 +3=78------->78g/moli

Mg(OH)2

M=24 +2.16 +2=58------->56g/moli

HCl

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

H2SO4

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

HNO3

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

CaCO3

M=40+12+3.16=100------->100g/moli

CuSO4

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

AgNO3

M=108+14+3.16=170------->170g/moli