What happens when dilute hydrochloric acid is added to iron fillings?

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Aayush Asked Feb 27

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A resistance of $50 \Omega$ is registered when two electrodes are suspended into a beaker containing a dilute solution of a strong electrolyte such that exactly half of the them are submerged into solution.

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If 6.3 g of NaHCO3 are added to 15.0 g of CH3COOH solution, the residue is found to weight 18.0 g. What is the mass of CO2 released in this reaction?

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0.218 g of magnesium when dissolved in dilute HCl evolved 218.2 mL of hydrogen at $17^{\circ} C$ and 754.5 mm collected over water.

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For the equilibrium $PCl _{5}( g ) \rightleftharpoons PCl _{3}( g )+ Cl _{2}( g )$ in a closed vessel, $K _{ p }$ is found to be double of $K _{ c }$. This is attained when:

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What happens when dilute hydrochloric acid is added to iron fillings?

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