Réponse:
A)
2. m= p.v = 0.79×20
m= 15.8g
3. N= (m/M)×Na = (15.8/46.07) × 6.02×10^23
N= 2.1×10^23
4. n= m/M = 15.8/46.07 = 0.34 mol
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Réponse:
A)
2. m= p.v = 0.79×20
m= 15.8g
3. N= (m/M)×Na = (15.8/46.07) × 6.02×10^23
N= 2.1×10^23
4. n= m/M = 15.8/46.07 = 0.34 mol