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2014-08-25T19:40:45+07:00
Diket. : m = 5 gram
             v = 250ml = 0.25L
ditanyakan : k = .... ?
jawab : k= m/v
              k = 5 g/0.25L = 5 : 1/4 = 5 x 4/1
                  = 20 g/L
                  
2 4 2
2014-08-25T19:47:18+07:00
Mr garam dapur (NaCl) = 58,5
n= gr/mr
= 5/58.5
= 0,08
V = 250ml = 0,25L
M = n / V
= 0,08 / 0,25
= 0.32