Question

Am nevoie de transformari cu denistatea in RO....Mai exact 5 tranformari.....primul care raspunde primeste coroana dar trebuie sa fie corect..URGENT!!!!!

Answer 1

densitatea ro = p are unitatea de masura in SI g/cm3 (g/ml)

1) 250 g/L

1 L = 1000 cm3

250 g/1000 cm3

= 0,25 g/cm3

2) 750 mg/cL

1 g = 1000 mg si 1 cL = 10 cm3

(750/1000) / 10 = 0,750 / 10

= 0,075 g/cm3

3) 0,25 kg/L

25 Kg = 25x1000 g = 25000 g

1 L = 1000 cm3

25000 / 1000

= 25 g/cm3

4) 1,5 hg/dm3

1,5 hg (hecto-grame) = 1,5x100 g

1 dm3 = 1 L = 1000 cm3

150 / 1000

= 0,15 g/cm3

5) 0,025 t/m3

0,025 t (tone) = 0,025x1000000 g

1 m3 = 1000000 cm3

25000 / 1000000

= 0,025 g/cm3