1. Sebanyak 37,25 gram kcl (k=39,cl=35) dilarutkan dengan air hingga volume larutkan 250 mL. Hitunglah kemolaran larutan tersebut 2. Berapa gram CaCl2 harus dil

1. dik: gr kcl=37,25                          2. dik ; M=0.25
          mr kcl = 74                                        mr=110
          v = 250 ml                                          v=250 ml
jawab : M=gr/mr x 1000/v                   jawab : M=gr/mr x 1000/v
               =37,25/74 x 1000/250                     0.25=gr/110 x 1000/250
               =2 molar                                            gr=0.25x110/4
                                                                           gr=6.879 gram