--%>
Assignment Help - homework help

Problem on weight fraction

A gas contains 350 ppm of H2S in CO2 at 72°F and 1.53 atm pressure. If the gas is liquified, what is the weight fraction H2S?

E

Expert

Verified

Now we consider 1liter of CO2 at 72deg F {[K] ≡ (72+ 459.67) × 5/9}=295.3722 K 1.53 atm

So No moles n= PV/RT =1.53atm*1liter/(0.08205liter-atm/K-mole*295.3722) =0.063131mole

So wt of CO = 0.063131mole*28g/mole =1.76767g

Now 350 ppm H2S would have a volume 350 microlitre ( µL ) per litre, = 350 ppm =350E-6 litre

So No of moles H2S = n= PV/RT =1.53atm*(350E-6)liter/(0.08205liter-atm/K-mole*295.3722K)
   = 2.20959E-05 mole

The MW H2S = 34.116g/mole

So wt of H2S = 0.000753823 g

So total weight =1.768423823g

So %wt H2S = (0.0007538236/1.768423823g)*100%=0.04262%

   Related Questions in Chemical Engineering

  • Q : Calculating adiabatic flame temperature

    Calculate the adiabatic flame temperature of acetylenes gas at a pressure of 1 bar under the following conditions. The reactants are initially at 298K. Assume that the acetylene reacts completely to form CO2 and H2O:

    Q : Draw a flow diagram and annotate the

    Cumene is produced by the vapour phase reaction of benzene with propylene. The fresh feeds have the following compositions: Benzene: 99% w/w benzene, 1% w/w toluene Propylene: 98% v/v propylene,

    		•
  • Q : Problem on molar flow rate I) Sulphur

    I) Sulphur dioxide (SO2) with a volumetric flow rate 5000cm3/s at 1 bar and 1000C is mixed with a second SO2 stream flowing at 2500cm3/s at 2 bar and 200C. The process occurs at steady state. You may as

    		•
  • Q : Matlab/Simulink assignment Modeling eye

    Modeling eye movements is commonly performed in the Matlab/Simulink pacakage. Based on the Physiological evidence, oculomotor plants have been designed to simulate various eye movements. Choose two eye movement models, one for saccades and the other for pursuit, and simulate the following amplitudes

    		•
  • Q : Bsc what is the latent heat of

    what is the latent heat of vaporization for hexane

    		•
  • Q : Hh to determine the temperature that

    to determine the temperature that occurred in a fire in a warehouse, the arson investigator noticed that the relief valve on a methane storage tank had popped open at 3000 psig, the rated value. Before the fire started, the tank was presumably at ambient conditions and the gage read 1950 psig. If th

    		•
  • Q : Materials and energy balance you look

    you look up the specific gravity of 96% H2SO4 and find it is 1.858.calculate the weight

    		•
  • Q : Rate of flow of nitrogen The feed to an

    The feed to an ammonia synthesis reactor contain 25 mole% nitrogen and the balance hydrogen. The flow rate of the stream is 3000 kg/hr. Calculate the rate of flow of nitrogen into the reactor in kg/hr. (Hint: First calculate the average molecular weight of the mixture).

    		•
  • Q : Problem on Clausius-Clapeyron equation

    The Clausius-Clapeyron equation gives us an expression for dP/dT. Now we will derive an analog to the Clausius-Clapeyron equation by obtaining an expression for dT/dµ when two phases are at equilibrium. For simplicity, let’s derive this fo

    		•
  • Q : Problem on heat required for process A

    A steady-state flow process is used to heat methanol in a tank. The incoming stream is at 2 bar and 25 oC and has a flow rate of 5 kg/s. The outgoing stream is at 1 bar, 100 oC. Heating is provided by a heating coil immersed in a tank. Given the

    		•