Odpowiedź:
Wyjaśnienie:
Zad.43
m1 = d*V1
m1 = 0,79g/cm3*500cm3
m1 = 395g
m2 = d*V2
m2 = 0,79g/cm3*460cm3
m2 = 363,4g
395g - 363,4g = 31,6g
% strat = (31,6g/395)*100%
% strat = 8%
395g.............100%
363,4g.............x
x = 92%
Zad.44
300cm3*0,045 = 13,5dm3
300dm3 - 13,5dm3 = 286,5dm3
m1 = d1*V1
m1 = 0,9kg/dm3*286,5dm3
m1 = 257,85kg
m2 * d2*V2
m2 = 0,88kg/dm3 * 275dm3
m2 = 242kg
m1 - m2 = 15,85kg
15,85kg/257,85 * 100% = 6,15%
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Odpowiedź:
Wyjaśnienie:
Zad.43
m1 = d*V1
m1 = 0,79g/cm3*500cm3
m1 = 395g
m2 = d*V2
m2 = 0,79g/cm3*460cm3
m2 = 363,4g
395g - 363,4g = 31,6g
% strat = (31,6g/395)*100%
% strat = 8%
395g.............100%
363,4g.............x
x = 92%
Zad.44
300cm3*0,045 = 13,5dm3
300dm3 - 13,5dm3 = 286,5dm3
m1 = d1*V1
m1 = 0,9kg/dm3*286,5dm3
m1 = 257,85kg
m2 * d2*V2
m2 = 0,88kg/dm3 * 275dm3
m2 = 242kg
m1 - m2 = 15,85kg
15,85kg/257,85 * 100% = 6,15%