Bonjour,
1) V = 3 L et Cm = 15 g.L⁻¹
donc m = Cm x V = 15 x 3 = 45 g
2) Dans V = 2 L, m = Cm x V = 15 x 2 = 30 g
3) Dans V = 1 L, m = Cm x V = 15 x 1 = 15 g
4) Dans V = 250 mL = 0,250 L, m = Cm x V = 15 x 0,250 = 3,75 g
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Bonjour,
1) V = 3 L et Cm = 15 g.L⁻¹
donc m = Cm x V = 15 x 3 = 45 g
2) Dans V = 2 L, m = Cm x V = 15 x 2 = 30 g
3) Dans V = 1 L, m = Cm x V = 15 x 1 = 15 g
4) Dans V = 250 mL = 0,250 L, m = Cm x V = 15 x 0,250 = 3,75 g