import math
from __future__ import division
#initialisation of variables
m= 164.2 #gms
M= 60 #gms
V= 0.8 #lit
d= 1.026 #g/cc
mw= 18.02 #gms
#CALCULATIONS
M1= m/M
n= M1/V
G= V*1000*d
G1= G-m
m1= M1*1000/G1
n1= G1/mw
x= M1/(M1+n1)
y= 1-x
p= x*100
p1= y*100
P2= m*100/G
#RESULTS
print"molarity=",round(n,3),"M";
print"molality=",round(m1,3),"m";
print"mole fraction of solute=",round(x,4);
print"mol per cent of solute=",round(p,2),"per cent";
print"mol per cent of solvent=",round(p1,2),"per cent";
print"mol per cent acetic acid by weight=",round(P2,2),"per cent";
import math
from __future__ import division
#initialisation of variables
m= 0.0346 #gms
V= 800 #ml
P= 742 #mm
M= 32 #gms
p= 400 #mm
#CALCULATIONS
c= m*1000/V
g= c*760/(P*M)
K= g*22.4
k= c/P
c1= k*p
#RESULTS
print"concentration of oxygen=",round(c,4),"gram per litre";
print"moles dissolved =",round(g,4),"moles";
print"Bunsen absorption =",round(K,4),"litre";
print"grams of oxygen dissolved =",round(c1,4),"gram per litre";
import math
from __future__ import division
#initialisation of variables
mn= 0.0134 #gms
mo= 0.0261 #gms
mh= 0.0081 #gms
T= 30 #C
P= 3 #atm
r= 4/5
#CALCULATIONS
V= mn*(273+T)*1000/273
V1= V*r
V2= V1*P
V3= mo*(273+T)*(1-r)*P*1000/273
V4= mh*(273+T)*r*1000/273
V5= V4*P
V6= V2-V1
V7= V5-V4
#RESULTS
print"volume of oxygen=",round(V,1),"ml";
print"volume of nitrogen=",round(V3,1),"ml";
print"volume of helium =",round(V5,1),"ml";
print"volume of nitrogen and helium would be expelled =",round(V7,1),"ml";
import math
from __future__ import division
#initialisation of variables
p= 214 #mm
M= 112.5 #gms
m= 18 #gms
m1= 10 #gms
#CALCULATIONS
P= 760-p
M1= m1*P*m/(p*M)
#RESULTS
print"quantity of water=",round(M1,2),"gms";
import math
from __future__ import division
#initialisation of variables
p = 17.4 #mm
m= 1000 #gms
M= 18 #gms
n= 2 #moles
#CALCULATIONS
P= p*((m/M)/((m/M)+n))
P1= p*(n/((m/M)+n))
dp= p-P1
#RESULTS
print"vapour pressure of solution=",round(P1,2),"mm";
import math
from __future__ import division
#initialisation of variables
m= 92.13 #gms
M= 78.11 #gms
n= 1 #moles
p= 119.6 #mm
p1= 36.7 #mm
#CALCULATIONS
n1= m/M
x= n/(n+n1)
y= 1-x
P= y*p
P1= x*p1
P2= P+P1
m1= P/P2
m2= 1-m1
#RESULTS
print"mole fraction of benzene=",round(m1,3);
print"mole fraction of toulene=",round(m2,3);