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In performing a superconductor lab with Yttrium oxide, barium peroxide, and cupric oxide, explains what is the importance of compressing the pellet for a solid-state reaction? Explain what would be the difference between reactions in solution and in the solid state.
Define Constant volume conditions. Suppose total heat capacity of the bomb calorimeter is 8.74 KJ/C. Adding up a substance with a mass of 1.44 g to the calorimeter, the temperature increases from 22.14 to 27.09 degrees.
The solubility of a certain compound in ice-cold water is .19g in 100mL. its solubility in hot water is 3.35g in 100mL.
Calculate the temperature change in the water upon the complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC \Delta T to calculate the temperature change of the 275g of water.
There is less waste. II. Harsh reagents are avoided. III. It uses recombinant technology. IV. It needs intense purification.
Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left.
calculate A) the molarity of sodium B) the molarity of magnesium acetate C) the molarity of acetate ion in each solution
What information do molecular formulas, condensed structural formulas, Lewis structures and bond line formulas provide
which would you expect to be more soluable in water mtbe methyl tert-butyl ether or other components of gasoline such
the equilibrium constant for a chemical transformation can be predicted from its stoichiometric coefficients whereas the rate law must be determined experimentally.
Using 1-butanol as the only organic starting material, write out a series of reactions that will produce this molecule:
compute the ph for each of the given cases in the titration of 50.0 ml of 0.210 m hypochlorous acidhcloaq with 0.210 m
For the reaction N2O4(g) (equilibrium arrows) 2NO2(g), kp = 0.25 at a certain temperature. Calculate the equilibrium pressures of NO2(g) and N2SO4(g) if the initial pressures of the components when placed in an otherwise empty container are as f..
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