1.? m=1m3=1000L..Eu cred ca era 1m3=1000L
T=273+17=290K
1atm=760mmHg
624mmHg=0.821atm
Maer=28.9
p*V=m/M*R*T ===>m=M*R*T/p*V=28.9*0.082*290/0.821*1000=0.837g..Daca e 1cm3 ==>837g
2. Vo=5L
V1=2L
p1=10atm
p0*V0/T0=p1*V1/T1 ==>p0*V0=p1*V1===>p0=p1*V1/V0=10*2/5=4atm
3. T=273+25=298K
745mmHg=0.98atm
V=153m3=0.153L.. nu stiu....
4. V=500cm3=0.5L
mvapori=0.35g
T=273+87=360K
p=270=0.355atm
p*V=m/M*R*T ===>M=m*R*T/p*V=0.35*0.082*360/0.355*0.5=58.2g/mol