Question

In: Chemistry

Write net ionic equations for the reactions that take place when aqueous solutions of the following...

Write net ionic equations for the reactions that take place when aqueous solutions of the following substances are mixed.

A) sodium cyanide and nitric acid

B) ammonium chloride and sodium hydroxide

C) sodium cyanide and ammonium bromide

D) sodium hydrogen sulfite and potassium cyanide

E) sodium hypochlorite and ammonia

Solutions

Expert Solution

A) sodium cyanide and nitric acid

NaCN (aq) + HNO3(aq) --------> NaNO3(aq) + HCN(s)

Na+(aq)+CN- (aq) + H+(aq)+NO3-(aq) --------> Na+(aq)+NO3-(aq) + HCN(s)

CN- (aq) + H+(aq) --------> HCN(s)

B) ammonium chloride and sodium hydroxide

    NH4Cl(aq) + NaOH(aq) ---------> NaCl (aq) + NH4OH(aq)

NH4+(aq) +Cl-(aq) + Na+(aq) +OH-(aq) ---------> Na+(aq) +Cl- (aq) + NH4+(aq)+OH-(aq)

C) sodium cyanide and ammonium bromide

    NaCN(aq) + NH4Br (aq) ---------> NH4CN(aq) + NaBr(aq)

Na+(aq) +CN-(aq) + NH4+(aq) +Br- (aq) ---------> NH4+(aq) +CN-(aq) + Na+(aq+Br-(aq)

D) sodium hydrogen sulfite and potassium cyanide

    NaHSO3(aq) + KCN(aq) -------..> NaCN(s) + KHSO3(aq)

Na+(aq) +HSO3_(aq) + K+(aq) +CN-(aq) -------..> NaCN(s) + K+(aq) +HSO3-(aq)

Na+(aq) +CN-(aq) -------..> NaCN(s) net ionic equation

E) sodium hypochlorite and ammonia

NaOCl (aq) + NH3(aq) --------->   NH2Cl(aq) + NaOH(aq)

Na+(aq) +OCl -(aq) + NH3(aq) --------->   NH2+(aq) +Cl-(aq) + Na+(aq) +OH-(aq)

OCl -(aq) + NH3(aq) --------->   NH2+(aq) +Cl-(aq) + Na+(aq) +OH-(aq) net ionic equation

queen_honey_blossom answered 1 year ago
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