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For the reaction A + 2B ? 2C + D, the rate law is Rate = k[A]2. What is the overall order of the reaction? If k = 3.8 x 10-5 M s-1, how long will it take for the concentration of A to decrease from 1.0 M to 0.25 M? If [Bo] = 1.5 M, what will be the concentration once [A] = 0.25 M?
Each polypeptide in the alpha keratin dimer has 3.5 residues per turn, resulting in the slight winding, or twist, around the other polypeptide
calculate the sodium ion concentration in a solution formed by diluting 35.00 mL of a .585 M sodium phosphate solution to a final volume of 145.00 mL
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
Diffussion controlled electrolysis proceeds on (a) planar and (b) spherical electrode under the conditions: n = 1, C = 1 mM, A= 0.04 cm^2, D = 1.5x10^-5 cm^2/s.
What tripeptide would be synthesized from the informational strand of DNA with the sequence 5' GTATCCAGT?
A solution contains 0.635g NaOH in 236 ml solution. What is the [OH-]?
The reaction 2NO (g)-> N2 (g) + O2 (g) has a H = 180.5 kJ. How much heat will be required to produce 44.8 L of NO by the reverse reaction?
A 48.0-L gas cylinder contains 249 mol of H2 gas at 298 K. What is the pressure inside the cylinder.
What is the van't Hoff factor for HX in water? b) What is the molality of X1- ions in the solution?
What amount of Potassium Chloride forms when 5.25 litres of Chloride gas at 0.95 atm and 293 K reacts with17.0 g of Potassium
Calculate the final temperature when a 22.0 gram sample of ice at 0oC is placed into a styrofoam cup containing 113 grams of water at 77.1 oC. Assume that there is no loss or gain of heat from the surroundings.
121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.
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