3) A neutralization reaction is a chemical reaction between an aqueous solution acid and a basic aqueous solution.
The neutralization reaction is carried out between 100 mL of a 0.5 HCl solution
mol / L at 19.7 ° C and 25 ml of a 2 mol / L NaOH solution at 19.7 ° C also in a
calorimeter. We neglect the energy absorbed by the walls. We consider that the heat
mass of the solution is that of pure water and that the density of
solutions is 1kg / L.
The final temperature measured in the calorimeter is 24.8 ° C.
Calculate the change in molar enthalpy of this neutralization reaction and
conclude as to the endo or exothermic nature of a neutralization reaction.

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Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

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