MCQ

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$\wedge^{{\circ}}_{\text{m}(\text{NH}_4\text{OH})}$ is equal to _____________.

• A
  $\wedge^{{\circ}}_{\text{m}(\text{NH}_4\text{OH})}+\wedge^{{\circ}}_{\text{m}(\text{NH}_4\text{Cl})}-\wedge^{{\circ}}_{\text{HCl}}$
• B
  $\wedge^{{\circ}}_{\text{m}(\text{NH}_4\text{Cl})}+\wedge^{{\circ}}_{\text{m}(\text{Na}\text{OH})}-\wedge^{{\circ}}_{(\text{Nacl})}$
• C
  $\wedge^{{\circ}}_{\text{m}(\text{NH}_4\text{Cl)}}+\wedge^{{\circ}}_{\text{m}(\text{Nacl})}-\wedge^{{\circ}}_{\text{NaOH}}$
• D
  $\wedge^{{\circ}}_{\text{m}(\text{NaOH})}+\wedge^{{\circ}}_{\text{m}(\text{NaCl})}-\wedge^{{\circ}}_{(\text{NH}_4\text{Cl})}$