\(\mathrm{MnO_2(s)} + x\mathrm{HCl(aq)} \rightarrow \mathrm{MnCl_2(aq)} + y\mathrm{H_2O(l)} + z\mathrm{Cl_2(g)}\) In theequation above, what are the values ...

Assessment: JAMB UTME - Chemistry - 2007 Subject: Chemistry

Question 1 Report

\(\mathrm{MnO_2(s)} + x\mathrm{HCl(aq)} \rightarrow \mathrm{MnCl_2(aq)} + y\mathrm{H_2O(l)} + z\mathrm{Cl_2(g)}\)

In theequation above, what are the values of x, y and z respectively

Answer Details
The equation represents a reaction between solid manganese dioxide (MnO2) and hydrochloric acid (HCl) to produce manganese(II) chloride (MnCl2), water (H2O), and chlorine gas (Cl2). The balanced chemical equation for the reaction is: MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g) Thus, the values of x, y, and z are 4, 2, and 1, respectively. This is because four moles of hydrochloric acid are needed to react with one mole of MnO2, producing two moles of water and one mole of chlorine gas.

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