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The first-order decomposition of N2O5 at 328 K has a rate constant of 1.70. 10-3 s-1. If the initial concentration of N2O5 is 2.88 M, explain what is the concentration of N2O5 after 12.5 minutes?
ln [A] = -kt + ln [Ao]ln [A] = (-1.70 x 10^-3 x 12.5 x 60) + ln (2.88)Explain why is the temperature 60 instead of 328K?
an aerosol can holds 0.35 L at 4.5 atm pressure. What is the volume when the gas is released into 1.0 atm pressure.
The molar mass of a protein is determined from a measurement of the osmotic pressure. If 0.01 grams of the protein is dissolved in 1 ml. and osmotic pressure
She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field, and the bacterium is thus impossible to locate. What is the uncertainty of the position of the bacterium?
Determine the pH of a buffer prepared by mixing 0.675 moles of HC2H3O2 and 0.575 moles of NaC2H3O2 in enough water to give 1.00 liter of solution.
Using the volumes of sodium EDTA solution you just entered and the corresponding calcium carbonate masses entered earlier, calculate the molarity of the sodium EDTA solution for each trial.
Using values from Appendix C of your textbook, calculate the value of Keq at 298 K for each of the following reactions: (a) CH4(g) + 4 Cl2(g) CCl4(l) + 4 HCl(g) Keq = . (b) H2(g) + Br2(g) 2 HBr(g) Keq = . (c) Fe3O4(s) + 4 CO(g) 3 Fe(s) + 4 CO2(g) ..
How many mL of a 93% w/w sulfuric acid having a specific gravity of 1.820 should be used in preparing 2,480 mL of 9% w/v acid
What is S for the boiling of C2H5OH. Use the data given below. Assume that enthalpy and entropy values are temperature independent.
The iron-chromium voltaic cell utilizes the following reaction with a measured potential of 0.30V. What is the standard change in G
A student carrried an experiment to prepare hydrogen in the labrotary, if the student collected 145.5ml of gas at a pressure of 750 mmHg and a temp of 25 degree celcius.
Calculate the change in pH to 0.01 pH units caused by adding 10. mL of 2.72-M NaOH is added to 490. mL of each of the following solutions. a) water pH before mixing
a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
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