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peny :
m = massa zat terlarut / Mr x 1000 / massa pelarut
= 16 ,20 / 180 x 1000 / 83,8
= 16200 / 15084
= 1,07
2) 3,42 gram sukrosa c12h12o11 ( mr = 342 ) di larutkan dengan 250 gr air ,,
peny :
m = massa zat terlarut / Mr x 1000 / massa pelarut
= 3,42 / 342 x 1000 / 250
= 342 / 8550
= 0,04