Question

calculeaza masa moleculara la carbonat de mg,sulfat de zn,acid carbonic,hidroxid de al,clorura de mg,hidroxid de ca,h2o2 si clorura de amoniu

Answer 1

M MgCO3= A Mg+A C+ 3*A O= 24+12+3*16=  84⇒ miu= 84g/mol
M ZnSO4= A Zn+ A S+ 4*A O= 65+32+4*16= 97+64= 161⇒ miu= 161g/mol
M H2CO3= 2A H+A C+3A O= 2*1+12+3*16=14+48=62⇒ miu=62g/mol
M Al(OH)3=A Al+3*AO+3A H= 27+3*16+3*1=78⇒miu=78g/mol
M MgCl2= A Mg+2A Cl= 24+2*35,5=24+71=95⇒ miu=95g/mol
M Ca(OH)2= A Ca+2A O+2A H=40+2*16+2*1=74⇒ miu=74g/mol
M H2O2= 2A H+2A O=2*1+2*16=34⇒miu=34 g/mol apa oxigenata
M NH4Cl= A N+4A H+A Cl=14+4*1+35,5=53,5⇒miu=53,5g/mol