Question

Which of the following is present in the flask after some NaOH has been added to...

Which of the following is present in the flask after some NaOH has been added to the hydrochloric acid, but before the equivalence point has been reached? Explain your answers carefully.
A. HCl (aq)
B. NaOH (aq)
C. NaCl (aq).

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Answer #1

Answer is

HCl (aq) and NaCl (aq)

because equivalence point is not reached so there will be some HCl reamaining after some being nuetralized by NaOH added

NaOH will not be present as soon as it is added it will be nuetralized by the HCl so there will be no NaOH

as the reaction has proceeded NaCl would have been formed from the nuetralization reaction

HCl (aq) + NaOH (aq) -----> NaCl (aq) + H2O (l)

so before equivalence point NaCl and HCl will be present

but at equivalence point only NaCl will be present there will be no HCl and NaOH

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