Question

Balance the following equation by ion electrode method using desired medium:-Zn+NaNO3+NaOH gives Na2ZnO2 +NH3+H2O

Answer 1

Answer on Question #67899, Chemistry / Inorganic Chemistry

Balance the following equation by ion electrode method using desired medium:-

$$Z_{n} + NaNO_{3} + NaOH \text{ gives } Na_2ZnO_2 + NH_3 + H_2O$$

Answer

$$Zn^0 + 4OH^- - 2c \rightarrow ZnO_2^{2-} + 2H_2O \quad |4|$$ $$NO_3^- + 9H^+ + 8e \rightarrow NH_3 + 3H_2O \quad |1|$$ $$4Zn^0 + 16OH^- + NO_3^- + 9H^+ \rightarrow 4ZnO_2^{2-} + NH_3 + 11H_2O$$ $$4Zn^0 + 7OH^- + NO_3 + 9H_2O \rightarrow 4ZnO_2^{2-} + NH_3 + 11H_2O$$ $$4Zn^0 + NaNO_3 + 7NaOH \rightarrow 4Na_2ZnO_2 + NH_3 + 2H_2O$$

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