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The gas phase decomposition of hydrogen iodide at 700 K
HI(g)------>½ H2(g) + ½ I2(g)
is second order in HI.
In one experiment, when the initial concentration of HI was 2.00 M, the concentration of HI dropped to 0.434 M after 1.10×103 seconds had passed.
Based on these data, the rate constant for the reaction is________ M-1 s-1.
Vitamin solubility is 1 gmol in 100 gmol of waterYou are loading a drug (D) onto a porous spherical carrier pellet from an ethanol solution. The process is controlled by film diffusion f nom the bulk ethanol solution to the pellet.
A 45.5 g sample of copper at 99.8 degrees C is dropped into a beaker containing 152 g of water at 18.5 degrees C. What is the final temperature when thermal equilibrium is reached?
question the freezing-point depression of a 0.100 m molality mgso4 solution is 0.225 degrees celsius. determine the
the pressure on a 625 ml sample of gas is changed from .925 atm to 1.45 atm. what is the new sample of gas?
What mass of calcium nitrate would need to be added to 100.0 mL of 1.0 M ammonia (Kb = 1.8*10^-5) to precipitate calcium hydroxide (Ksp = 5.5 *10^-6 Assume no volume changes occur
If a weak acid, HA, is 3% dissociated in a 0.25 M solution, calculate the Ka and pH of the solution.
air expands from 500 psia 5000f to 15 psia in a process that is reversible adiabatic. if the atmospheric pressure is
Question- Detailed calculations show that the value of Zeff for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+, respectively. 1) Predict Zeff for a valence electron in P, phosphorus, based on the calculations for Si and Cl.
Write the balanced equation and calculate how many milligrams of barium sulfate are produced when 7.00 mg barium chloride and 8.00 mg copper (ii) sulfate are mixed. What is the percent yield if 2.80 mg barium sulfate is produced?
Naphthalene is a hydrocarbon that is commonly found in mothballs. Naphthalene is 93.75% carbon by mas. If Naphthalene's molecular formula is twice its empirical formula , What the molar mass
Write a chemical equation showing how each of the following species can behave as indicated when dis- solved in water. a. HSO3- as an acid b. CO3^2- as a base c. H2PO4- as an acid d. C2H3O2- as a base
A diprotic acid, H2A, has pKs 8.4 and 3.5. 50.0 mL of 0.10M of the diprotic acid, H2A, is titrated with 0.20 M NaOH. What is the Ve (i.e. the first equivalence point)?
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