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an athelete takes 20 breaths p er minute at room temperature. the air inhaled in each breath is 200 ml .which contains 20 % oxygen by volume , while exhaled air contains 10 % oxygen by volume . assuming that all the oxygen consumed if used for converting glucose into CO2 and H2O ( l ), how much glucose wii be burnt in the body in one hr and what is the heat produced? room temperature =27 oc and enthalpy of combustion of glucose = - 2822.5 kj /mol at 20 oc
Lithium will react with oxygen in a pressurized container to produce solid lithium oxide at 25°C. If 0.125 g Li(s) is placed in a 0.450 L container filled with oxygen at 1.85 atm, determine the final pressure inside the container
Using the selection rules deltaS=0, deltaL=+-1 and deltaJ=0,+-1, predict which transitions are allowed from the ground level in A). Consider only transitions between terms within each configuration given.
Calcium reacts with sulfur forming calcium sulfide. Explain what is the theoretical yield (g) of CaS(s) that could be prepared from 72.89 g of Ca(s) and 27.44 g of sulfur(s)
Calculate and compare the rms speeds of CO and Cl2 at 300. K. rms speed of CO m/s rms speed of Cl2 m/s
The following acid-base reaction is performed in a constant pressure calorimeter. H+ (aq) + OH-(aq) ? H2O (l) ?H=-57. 32 kJ/mol The temperature of 1000.0 g of water rises from an initial temperature of 24.5 °C
Problem- An industrial flow of 12 L/min has a solids concentration of 80 mg/L. A solids removal process extracts 960 mg/min of the solids from the flow without affecting the liquid flow. What is the recovery (in percent)
producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO?
KHP is an acid that is monoprotic and hardly hygroscopic. When carbon dioxide reacts with NaOH it produces sodium carbonate. I kind of understand how to do part b but i really don't understand how to do part a.
An electron is confined to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm. What is the length of the box?
soft drinks are canned under 4 atm of co2 and releaseco2 when opened.a how many moles of co2 are dissolved in a 355 ml
One liter of a buffer solution is prepared by dissolving 0.115 mol of NaNO2 and 0.070 mol of HCl in water. What is the pH of this solution? If the solution is diluted two fold with water, what is the pH?
What are the arguments in favor of the hypothesis that the spliceosome is a ribozyme. How could you test this hypothesis
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