clc
//initialisation of variables
K= 1.4*10^-5
T= 25 //C
V= 200 //ml
m= 3.7 //gms
m1= 4.8 //gms
M= 74 //gms
M1= 96 //gms
//CALCULATIONS
x= m*1000/(V*M)
y= m1*1000/(V*M1)
X= K*x/y
//RESULTS
printf (' hydronium-ion concentration = %.1e mole per litre',X)