tentukan molaritas larutan 50 gram caco2 (Ar ca40 c12 dan o16 dalam 250 ml air

dik massa CaCO2= 50 gr
v = 250 ml =0.25 l
mr CaCO2 =( 40.1) + (12.1) +(2.16)
= 40+12+32
=84
m = n/v
m=50/84=0.59 mol
m= 0.59/0.25 =2.36