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A student dissolves 0.2975 g of the unknown weak acid to give 100. mL solution. S/he obtains the following titration curve for his/her best titration. At the equivalence point, 19.0 mL of 0.1000 M NaOH was added.
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When .514g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.8 degrees C to 29.4 degrees C. Find delta E(rxn) for the combustion of biphenylin kJ/mol. The heat capacity of the ...
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The mass of a sample of CaCO3 is 751 grams How many total atoms are present in this sample?
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You have 5 mL of HCl acid (unknown concentration) in a 50 mLvolumetric flask, and bring it up to volume with deionizedwater. Calculate the molarity of the HCl by using the pH equation(pH = -log[H3O+]) , and the dilution ...
A sample consisting of 1.0 mol CaCO3(s) was heated to 800 °C, when it decomposed. The heating was carried out in a container fitted with a piston that was initially resting on the solid. Calculate the work done during co ...
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