Question

Cat cantaresc 1,5 moli sulfat de aluminiu (+rezolvare)

Answer 1

Masa unui mol de Al2(SO4)3 este 2*27+(32+4*16)*3=54+(32+64)*3=
=54+96*3=342g/mol

1 mol ..... 342g
1.5moli ....x

x=342*1.5=513g

Answer 2

Al2(SO4)3
n=m/m
1.5=m/256
m=342x1.5
m=513 g
M=2XAAl+3XAs+12 xAO
=2X27+3X32+12X16
=342g/mol