Ratio of rate of diffusion of H2 and O2 under identical condition of temperature and pressure will be

Which of the following gases has the lowerst rate of diffusion under the same conditions of temperature and pressure? [H = 1, O = 16, Ne = 20, CI = 35]A. ChlorineB. HydrogenC. NeonD. Oxygen

Decomposition of H2O2 follows a first order reaction. In fifty minutes the concentration of H2O2 decreases from 0.5 to 0.125 M in one such decomposition. When the concentration of H2O2 reaches 0.05 M, the rate of formation of O2 will be:

What change would cause a DECREASE in O2 diffusion across a respiratory interface? An increase in the surface area of the interface An increase in the diffusion coefficient for O2? An increase in the thickness of the interface An increase in the partial pressure gradient for O2? An increase in temperature

1. Describe two variables that affect the rate of diffusion. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __________________________________________________________________________________________________ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 4. Put the following in order from smallest to largest molecular weight: glucose, sodium chloride, albumin, and urea. __________________________________________________________________________________________________ __________________________________________________________________________________________________ Simulated Facilitated Diffusion 1. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it differs. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. The larger value obtained when more glucose carriers were present corresponds to an increase in the rate of glucose transport. Explain why the rate increased. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 3. Explain your prediction for the effect Na+Cl- might have on glucose transport. In other words, explain why you picked the choice that you did. How well did the results compare with your prediction? __________________________________________________________________________________________________ Simulating Osmotic Pressure 1. Explain the effect that increasing the Na+Cl- concentration had on osmotic pressure and why it has this effect. How well did the results compare with your prediction? __________________________________________________________________________________________________ __________________________________________________________________________________________________ 2. Describe one way in which osmosis is similar to simple diffusion and one way in which it is different. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 3. Solutes are sometimes measured in milliosmoles. Explain the statement, "Water chases milliosmoles"

hich will diffuse faster, ammonia or carbon-dioxide? What are their relative rates of diffusion.