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Calculate the enthalpy change (ΔH) for: HCl(aq) + NH3(aq) → NH4Cl(aq)
The reaction of 50.0 mL of 1.00 M HCl with 50.0 mL of 1.00 M NH3 causes a temperature rise of 6.4 °C in the resulting 100.0 mL of solution.
The NH4Cl solution has a density of 1.005 g/mL and a specific heat of 3.97 Jg-1°C-1.
butane has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -.4 degrees Celsius. A 250 mL sealed flask contains .75 g of butane at -22 degrees C.
Both iodide ion and chloride ion are in the test solution. Describe the appearance of the contents of the test tube after drops of 0.01 M Agano3 have been added and the solution has been centifuged.
The "maximum buffer point" occurs when the pH equals the pK. Explain based on the Henderson-Hasselbach equation
what happens to Fe+SCN=FeSCN when water is added. which way is the equilibrium shift and why. why does the color intensity increase
when we perform the silver nitrate test.which five anions will combine with silver ion to form insoluble precipitates?
Elimination competes with substitution reactions, especially at high temperature. If that's the case, why did I not see more elimination in my 2 reactions
A metal object with a mass of 19g is heated to 96c, then transferred to a calorimeter containing 75g of water at 18c. The water and teh metal object reach a final temperature of 22c.
A NaOH soln of unknown concentration was standardized against KHP. It took 45.78 mL of NaOH soln to completely titrate 1.256 g of KHP. Cal the molarity of NaOH.
Show the product expected from the reaction of the grignard reagent formed from propyl bromide with methyl propanoate
the distance gauge indicates that you have traveled 15.2mi. what was your rate in km/hr?
A solution of H2SO4(aq) with a molal concentration of 3.58 m has a density of 1.200 g/mL. What is the molar concentration of this solution
What is the resonance structure that best describes the overall structure of the SNO+1 ion
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