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Problem- An activation energy of 4 eV is required to form a vacancy in a metal. At 817oC there is one vacancy for every 104 atoms. At what temperature will there be one vacancy for every 1000 atoms? Express your answer in Kelvin (K)
I don't know how to reach these answers thus please show the steps, thank you!
Problem- In a constant pressure calorimeter, 7.30 g CaCl2 is added to 125.00 mL of H2O at 23C. Determine the final temperature of the solution if the enthalpy change associated with the dissolution of the CaCl2 is -82.8 kJ/mol.
A solution of 2.50 g of a compound dissolved in 25 g g of benzene freezes at 4.3 C. Calculate the molar mass of the compound and determine its molecular formula if its empirical formula is C6H5P.
Calculate the Cation Exchange Capacity (CEC) of 1 g of a soil that releases the following concentrations of ions in the ammonium acetate test
How many chemicaly different hydrogens are in: 4'-Aminoacetophenone; 3'-aminoacetophenone; benzoic acid; 3-toluic acid;1,4-dimethoxybenzene; and fluorenone? alson how would you do a predicted chemical shift and splitting pattern for those
what mass of Mg is formed from molten MgCl2 if a current of 1.8 amps is passed through the sample for 16.7 hours
Compound B is a gaseous organic compound that consists of 85.6% carbon and 14.4% hydrogen by mass. Exactly 18.384 g of the compound is placed in a stainless steel vessle (10.68 L) with 4.63 mol of oxygen gas at 22.0 deg C. The total pressure in th..
Question- If 0.900mol of a nonvolatile nonelectrolyte are dissolved in 3.80mol of water, what is the vapor pressure PH2O of the resulting solution. The vapor pressure of pure water is 23.8 torr at 25 ?C.
What mass of Na3PO4 is required to prepare 250.0ml of a solution which is 0.30m in sodium phosphate
consider the reaction of chloromethane with oh- in aqueous solutionnbspnbspnbspkfch3cl aq oh- aq ----gt ch3oh aq cl-
If the density of N2 gas in a rigid flask is 0.243 g/L at 18 °C, what is the pressure of nitrogen in the flask if it is heated to 36 °C
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent
The solubility of AgBrO3 in aqueous solution depends on the presence of other substances in solution. Relative to its solubility in H2O the solubility of AgBrO3
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