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When two grams of sodium hydroxide were dissolved in 149 grams of (H2O)water in a calorimeter at twenty four degree Celsius temperature, the temperature of the solution went up to 29degrees C. find delta H for the solution of one mole of NaOH in H2O If calorimeter constant is 11 cal/deg C
Why does the electron energy threshold of dissociation almost always exceeds the actual dissociation energy in contrast to dissociation, stimulated by vibrational excitation
The overall equilibrium involves Ksp, Ka3 of phosphoric acid and Kw. Construct the constant and show the three equations that apply.
If the reaction is first order in A and second order in B, what is the rate when the initial concentration of A = 2.30 mol/L and that of B = 2.03 mol/L
Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4 of mass 20.0 mg.
Determine osmolarity of solution when 25.0 grams of aluminum chloride dissolves in 2.50 liters of H2O.
the advantages and disadvantages of using methanol, ethanol and water as a solvent for reactions with sodium borohydride?
If a sample is composed of 41% of the lighter isotope (with the balance being 7Li), calculate the average molar mass of the sample.
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
Draw an example of the change in molar volume during a 1st and 2nd order phase transition vs. temperature.
Compound B has molecular formula C6H10O and does not possess any bonds. When treated with concentrated HBr, cis-1,4-dibromocyclohexane is produced. Identify the structure of compound B.
Rather than weigh the sample on a balance a chemist wants to dispense the liquid using a pipette. What volume (in mL) should she measure out?
Using the rydeberg equation calculate the energy of the transition from lowest state, n=1, to the highest, n= infinity, for hydrogen atom.
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