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Which of these processes does not require energy input? Transcription, translation, replication, synthesis of phospholipids, or do they all require energy?
The mole fraction of oxygen molecules in dry air is 0.2095. What volume of dry air at 1.00 atm and 25°C is required for burning 1.00 L of hexane (C6H14, density = 0.660 g/mL) completely, yielding carbon dioxide and water
When 414 J of heat is added to the gas, it expands and does 104 J of work on the surroundings. What is the value of delta H?
If a triacylglycerol in peanut oil that contains one palmitic acid, one oleic acid, and one linoleic acid is completely hydrogenated, what is the product
Imagine a silica microsphere half of which is coated with a thin gold coating and having a trimethylammoniumpropanethiol molecule anchored to the gold.
using phosphoric acid what is the ph of the solution if u add 1.524g of phosphoric acid to enough water to make 100.0ml
What is the concentration of acetic acid which can be added to 0.5 M HCOOH solution so that dissociation of both is same?
a 0.500 l solution of 7.50 m hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. calcium
What is the pH of the solution which results from mixing 25 mL of 0.30 M HF(aq) and 25 mL of 0.30 M NaOH(aq) at 25 ºC? (Ka of HF = .00072)
Draw the structure of any D-ketoheptose in the open chain form, and answer the following questions (you must use either Haworth projection or chair conformation in each of the points below)
A solution is 0.020 M in each Ca2+ and Cd2+. What would be the resulting concentrations of the ions if the solution were adjusted to a pH of 12?
For the following reaction, 5.21 grams of nitrogen gas are allowed to react with with 5.51 grams of hydrogen gas.nitrogen (g) + hydrogen (g) ammonia (g),What is the maximum amount of ammonia that can be formed.
The pKa of one of the hydrogens that is attached to one of the nitrogens of the purine guanine is 9.7. If guanine is in a solution that has a pH of 10.2, then what fraction of the guanine molecules would be in the protonated form at this pH?
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