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Assuming a quantum requirement for photosynthesis of 8 (8 photons), calculate a thermodynamic efficiency in percent under standard conditions for the conversion of carbon dioxide to 3-phosphogylcerate if the wavelength of light used in 400 nm. To produce one mole of glucose from carbon dioxide and water requires +686 kcal of energy (6 CO2 + 6 H2O ! 1 C6H12O6 + O2). Hint: First calculate the number of kcal required to reduce one molecule of carbon dioxide to 3-phosphoglycerate during step one of the Calvin cycle.
Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines
A sample of apple juice has a hydrogen ion concentration of 1.69 x 10^-6 M. Determine the pH of this sample
An unknown metal chloride has the formula MClx. The addition of 28.9 mL of 0.432 M aqueous lead (II) nitrate to 26.7 mL of 0.311 M aqueous MClx causes all the lead ions and chloride ions present in solution to precipitate out as lead (II) chloride
in the synthesis of divanillin the first step in the mechanism of this reaction involving vanillin is the formation of phenoxy radical by abstraction of the phenoic H atom
If 0.20mL of methyl benzoate and 0.45mL of concentrated (18M)sulfuric acid PLUS 0.15mL of concentrated (18M)sulfuric acid and 0.15mL concentrated (16M)nitric acid were added together and the end product was methyl-3-nitrobenzoate
Now you find yourself on an airplane headed for Israel to visit the Dead Sea, which is below sea level. You have always wanted to visit there and now is your chance. What has happened to the atmospheric pressure?
Its volume in the liquid state is 1.00 cm3 and its volume in the vapour state is 1671 cm3. Find the work done by expansion due to evaporation and the change of internal energy of the system.
Predict the rate of change in the concentration of N2O over this time interval. In other words, what is dt [N2O]/ dt?
you need 4.5L of nitric acid solution with ph 6. you have unlimited amounts of nitric acid solution with a hydronuim ion concentration of 0.01M. Describe how you would form the required solution from the standard solution?
A solution is made by dissolving 4.055 g of FeCl3 in 500 mL of water. The freezing point of this solution is -.316 C. What is the van Hoff factor (i) for FeCl3 at this concentration? (kf for water is 1.86 C/m)
A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.16
Considering the given equation 2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O in which The combustion of octane produces carbon dioxide and water , determine the mass of water.
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