Respostas

2014-03-23T12:47:08-03:00
1 ml -------------- 20 gotas
    x ---------------  1 gota


20x = 1
x = 1 / 20
x = 0,05 mL

0,05 ml = 5,0 . 10⁻⁵ litros
1 5 1
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2014-03-23T12:49:13-03:00