" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
MNa2SO4* 7H20=2x23+32+4x16+7x18=268g/mol
268g-100%
126g-x
x=126gx100%/268g=47.01%
m(7H2O)=126u
268g hydratu--------100%
126g wody-------------x%
x=47% wody