" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Cm=0,4 mol/dm³
MK2SO4=2*39+32+4*16=174 g/mol
Cm=n/V
n= 0,4*0,25=0,1
m=n*M=0,1 * 174 =17,4g
V=250=cm3=0,25dm3
ms=?
0,4mola K2SO4 - 1dm3
x moli - 0,25 dm3
x=0,1 mola K2SO4
1mol K2SO4 - 174g
0,1 mola K2SO4 - x (g)
x= 17,4 g
ms=17,4g