jakie jest stężenie molowe 24% entowego roztworu amoniaku o gestosci 0,91g/cm3
V=1dm^3=1000cm^3 - założenie
d=m/V=>m=d*V=0.91g/cm^3*1000cm^3=910g
24g ---- 100g
x --- 910g
x=218.4g - masa amoniaku w roztworze
MNH3=17g/mol
17g - 1mol
218.4g - y
y=12.84mola
Cm=n/Vr=12.84mol/dm^3
Cp=24%
M NH3=17g/mol
d=0,91g/cm3 = 910g/dm3
Cm=?
Cm=Cp*d/100%*M
Cm=24*910/100*17
Cm=12,85 mol/dm3
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V=1dm^3=1000cm^3 - założenie
d=m/V=>m=d*V=0.91g/cm^3*1000cm^3=910g
24g ---- 100g
x --- 910g
x=218.4g - masa amoniaku w roztworze
MNH3=17g/mol
17g - 1mol
218.4g - y
y=12.84mola
Cm=n/Vr=12.84mol/dm^3
Cp=24%
M NH3=17g/mol
d=0,91g/cm3 = 910g/dm3
Cm=?
Cm=Cp*d/100%*M
Cm=24*910/100*17
Cm=12,85 mol/dm3