Anonymous
Anonymous asked in Science & MathematicsChemistry · 3 weeks ago

Help with Chemistry question PLEASE!! Solutions are combined in a calorimeter to determine the enthalpy of the neutralization reaction.?

The following solutions are combined in a calorimeter to determine the enthalpy of the neutralization reaction.

100.0 mL sodium hydroxide, NaOH, of unknown concentration an excess of 1.3732 M hydrochloric acid, HCl

The experimental value for q is determined to be -2.676 kJ

Knowing that the theoretical value of q for any neutralization reaction is -55.90 kJ/mol H2O, determine the concentration of the sodium hydroxide solution.

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  • Anonymous
    3 weeks ago

    moles of water formed = 2.676 kJ / 55.9 kJ/mole

     

    Since the acid is in excess and you are dealing with HCl and NaOH, this is moles of base.

     

    Molarity of base = moles of base / volume of base in L

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