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In a coffee cup calorimeter, 100mL of 0.10 M HClO4 is mixed with 100mL of 0.10 M KOH. The initial temperature of both solutions is 23.2°C. The resulting mixing temperature after the reaction is 26.3°C. The calorimeter constant is 27.8J/°C. Write the balanced chemical equation and calculate the amount of heat released by the experiment.
Ammonia is among the top ten synthesized compounds. Its many uses include the manufacture of ammonium nitrate and other fertilizers.
What is the final temperature of spoon + coffee? (Assume that the heat capacity of the spoon is the same as that of pure iron and that the heat capacity of the coffee is the same as that of pure water.)
The free energy change of the conversion of tasmainium to bulgarium was - 60 kcal and the enthalpy of the reaction was determined to be - 9.2kcal.
After tert-amyl chlorid has been distilled, one notices that there is some liquid remaining and this liquid distills at approximately 373.15K.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical s..
what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH
A stock solution of 1.24 x 10^-4 M dye is available in the lab. What volume of the stock solution must be transferred to a volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^-5 M
Tropylium cation satisfies the 4n + 2 rule. What do you think might occur of trityl fluoroborate was placed into solution with 1,3,5-cycloheptatriene(also known as Tropylium Fluoroborate)
The pH of a 0.10 M nicotinic acid solution is 2.93. What is the approximate value of Ka for nicotinic acid, HC6H4NO2? Assume small percent dissociation. pH = ?log10[H+].
the partial pressures of gas A and gas B respectively are 0.298 ATM and .702 atm if 0.130 mol a 3rd gas is added with no change in volume or temperature, what would the total pressure become?
a beaker containing 250g of water is heated from 23 degrees C to 100 degrees C. what is the heat gain in calories?
What is the molar solubility of AgCl in water. For AgCl, Ksp=1.8 x 10-10. Give your answer in moles per litre, accurate to two significant figures
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