Question

Carilah Mr untuk senyawa berikut :

a. MgCI^2
b. NaCI
c. AgNO^3
d. Cu50^4
e. Fe250^4


tolong tulis caranya ...

Answer 1

Mr MgCl^2
= Ar Mg+2(Ar Cl)
= 24+ 2(35,5)
=95

Mr NaCl
= Ar Na+Ar Cl
=23+35,5
=58,5

Mr AgNO^3
=Ar Ag+Ar N+ 3(Ar O)
=108+14+3(16)
=170

Mr CuSO^4
=Ar Cu+Ar S+ 4(Ar O)
=63,5+32+4(16)
=159,5

Mr Fe2SO4
=2(Ar Fe)+Ar S+ 4(Ar O)
=2(56)+32+4(16)
=208