Respuestas

2011-12-18T17:08:21+01:00

mNa2SO4= (2*23)+32+(16*4)=142u

m(NH4)2CO3= (2*14)+(1*8)+12+(16*3)=96u

mMg3(PO4)2= (3*24)+(31*2)+(16*8)=262u

mH2SO4= 2+32+(16*4)=98u