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Suppose you open a bottle of perfume at one end of a room. Very roughly, how much time would pass before a person at the other end of the room could smell the perfume, if diffusion were the only transport mechanism? Do you think diffusion is the dominant transport mechanism in this situation?
After mixing 2.00g of H2S with 2.00g of NaOH, a 92.0% yield of sodium sulfide is obtained. Calculate the experimental yield in grams obtained in that reaction.
The thermochemical equation representing one process used for the synthesis of ammonia involves the equilibrium shown, N2(g) + 3 H2(g) 2 NH3(g) For this reaction, DH° = -92.2 kJ, DG° = -33.4 kJ. All things considered, one concludes that Question 1..
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution, (c) 9.00 g of sodium chloride (NaCl) in 86.4 mL of solution.
Balance the following chemical equations. Classify the reactions as decomposition, combination, single-displacement, double-displacement, or combustion.
Calculate the root mean square velocity of the CH4 molecules in a sample of CH4 gas at 281 K and at 533 K.
Draw graphs representing Boyle's law, Charles's law, and Gay-Lussac's law for a fixed amount of gas. Make sure that you label each axis and state the assumptions for each law-that is, the variable(s) that is (are) held constant for each law.
What would be the concentration of oxygen (in molarity units) if the gas had remained in the solution? C. Based on the above data, what is the rate of the reaction (in units of solution molarity per second)?
Explain the following observations. 1. Aziridines, compounds that contain nitrogen in a three-membered ring, undergo pyramidal inversion much more slowly than do other alkylamines.
The concentration of cholesterol, glucose and urea in the blood as of a fasting individual are listed below in units of mg/100mL. Change these concentrations into units of mM.
As a technician in a large pharmaceutical research firm, you need to produce 300. of 1.00 potassium phosphate buffer solution of = 7.11. The of is 7.21. You have the following supplies: 2.00 of 1.00 stock solution
how many grams of cl2 can be prepared from the reaction of 15.0g of mno2 and 30.0g of hcl according to mno2 4hcl -gtgt
How many grams of F- must be added to a cylindrical water reservoir having a diameter of 6.71 × 102 m and a depth of 44.01 m?
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