Calculate the equivalent mass of potassium dichromate. The reduction h

1.	Calculate the equivalent mass of potassium dichromate. The reduction half – reaction in acid medium is – Cr2O2- + 14H+ + 6e- → 2Cr3+ + 7H2O
Answer» Cr₂O^2- + 14H⁺ + 6e^- → 2Cr³⁺ + 7H₂O Equivalent mass = (Molar mass) / (No. of electrons gained) Molar mass of K₂Cr₂ O₇ = 294.18 ∴ Equivalent mass of K₂Cr₂O₇ = 294.18/6 = 49.03

Calculate the equivalent mass of potassium dichromate. The reduction half – reaction in acid medium is – Cr2O2- + 14H+ + 6e- → 2Cr3+ + 7H2O

Answer»

Cr₂O^2- + 14H⁺ + 6e^- → 2Cr³⁺ + 7H₂O

Equivalent mass = (Molar mass) / (No. of electrons gained)

Molar mass of K₂Cr₂ O₇ = 294.18

∴ Equivalent mass of K₂Cr₂O₇ = 294.18/6 = 49.03