Ibu melarutkan 10 gram garam ke dalam 250 ml air berapa gram per literkah konsentrasinya
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Penyelesaian
garama = 10 gram
air = 250 ml (0,25 liter)
konsentrasi = massa zat terlarut / volume
= 10 / 0,25
= 40
konsentrasi larutan = 40 gram/liter