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Stewart has a BMR of 160. kJ/d and climbs to the 13th floor of his office building in 4.00 min while consuming only 0.0100 kg of carbohydrate having an energy content of 17.2 MJ/kg. The distance between the floors is 7.60 m. What is Stewart's energy conversion efficiency if he does not lose any weight during the climb?
Note: Stewart must supply energy to achieve his kinetic energy motion, but this energy is not recovered when he stops.
On treating excess CaCO3 with 1 M (H4N)2SO4 explain the pH of the system vs the pH for CaCO3 saturated in 1 M H4NCl
Enter the coefficient for each compound, seperated by commas, in the order in which they appear in the equation (e.g., 1,2,3,4,5,6,7).
decomposition of N2O5 to NO2 and O2 at 70 degree celsius is 6.82 x 10^-3 s-1. Suppose we start with 0.300 mol of N2O5(g) in a .500L container. How many minutes will it take for the quantity of N2O5 to drop to .030 moles?
if in a certain experiment over a specific time period 0.0045 mol ph3 is consumed in a 1.9 l container each second of
solid calcium hydroxide is dissolved in 500 ml of water until the ph of the solution is 10.75. calculate the grams of
A sample of an ideal gas has a volume of 2.20 L at 288 K and 1.10 atm. Compute the pressure when the volume is 1.79 L as well as the temperature is 301 K.
A solution of ammonia and water contains 1.90×10^25 water molecules and 5.20×10^24 ammonia molecules. How many total hydrogen atoms are in this solution
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.6 atm. Assume that the total volume of blood in the body is 5.0 L.
A 26.0 mL aliquot of a flouride sample solution was diluted to 50 mL in a volumetric flask. The F- concentration of this DILUTED sample was determined with a F- ion selective electrode and found to be 3.1 mg/L. What is the concentration of F- in t..
Problem- How many single covalent bonds must a fluorine atom form to have a complete octet in its valence shell?
The pH of the solution at equivalence was 8.4. At 9.3 mL the pH was 5.3. What is the Ka for this acid? Please show all the work
ch4 2o2 --ampgt co2 2h2owhat is main type of inter molecular force for each molecule and whats the intermolecular
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