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n = gr / mr
= 25/ 180 = 0,139
v= 0,1 L
S = n /v
= 0,139 / 0,1 = 1,39 M
Gram larutan disini adalah jumlah gram seluruh nya, jadi gram larutan disini adalah 125 gram
Kadar Massa = x 100% = 20 %
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