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d=0,72g/dm³
V=1dm³
SZUKANE:
m=?
ROZWIĄZANIE:
m=d*V
1dm³=1000cm³
m=0,72g/cm³*1000cm³
m=720g
Proszę:-)
d=m/V
m=d*V
m= 1000cm3 * 0,72g/cm3 = 720g